Compromised Devices Statistics 2026: Costs & Trends

• Breach Costs: IBM's 2026 Cost of a Data Breach Report puts the global average at a record $4.99M, up from $4.44M in 2025 and $4.88M in 2024. The U.S. average reached $11.5M, and healthcare breaches averaged $6.64M.
• Incident Volume: Cybercrime volume keeps climbing. The FBI IC3 received 1,008,597 complaints in 2025 with $20.877B in reported losses, up from 859,532 complaints and $16.6B in 2024. Microsoft says it blocks about 4.7 million net new malware files every day.
• Top Vectors: Verizon's 2026 DBIR found exploitation of vulnerabilities is now the top initial access vector at 31%, while credential abuse fell to 13% as an entry point but appears at some stage in 39% of breaches. Ransomware was present in 48% of breaches, up from 44%. Microsoft reports more than 97% of identity attacks are password attacks.
• YoY Changes: The average breach lifecycle fell from 258 days (IBM 2024) to 241 days (IBM 2025), a nine-year low, before rising to 247 days in IBM's 2026 report. Organizations using security AI and automation extensively saved about $1.9M per breach in 2025 and $1.93M in 2026. Conversely, identity-based attacks rose 32% in the first half of 2025, and third-party involvement in breaches climbed to 48%.
• Volume Metrics: Cloudflare mitigated 8.3 million DDoS attacks in Q3 2025, up 40% year over year, and estimated the Aisuru IoT botnet at 1 to 4 million infected hosts. In Q3 2026 it mitigated 18.2 million network-layer attacks, after law enforcement dismantled Aisuru and three other large IoT botnets earlier in the year.
• Industry Trends: Healthcare was the costliest industry in IBM's 2025 report at $7.42M, down from $9.77M in 2024, and averaged $6.64M in 2026. Financial services breaches averaged about $6.3M in 2026. The industrial sector saw the largest cost increase in 2024, up $830,000 to $5.56M, driven by costly operational disruption.
• Regional Differences: Microsoft attributes 25.5% of observed cyber threat activity to customers in the United States in its 2026 Digital Defense Report (figure labeled January 2025 to June 2026), and the U.S. has the highest breach costs at $11.5M. In Europe, regulators issued about €1.2B in GDPR fines in 2025, matching 2024, while breach notifications rose 22% to 443 per day. Indonesia was the largest source of DDoS attacks in Cloudflare's data for a year until Bangladesh overtook it in Q4 2025, when Indonesia dropped to third.
• AI/Automation: AI is a double edged sword. IBM's 2026 study found 1 in 4 malicious breaches were AI-enabled, costing about $6M on average, and Microsoft reports AI-automated phishing reaches a 54% click-through rate versus 12% for traditional phishing. Defenders use AI to sift more than 165 trillion signals a day, and organizations using security AI and automation saved $1.93M per breach.

These highlights underscore the systemic challenge heading into 2026: an expanding threat landscape that penetrates virtually every sector. Below we unpack the data and trends.

Compromised devices encompass any endpoint, server, or IoT gadget whose security has been breached meaning its confidentiality, integrity, or availability is compromised. In 2025–2026, every device from mobile phones to industrial controllers has become a potential gateway for attackers. Statistics quantify this risk: for example, IBM reports the global average breach cost reached a record $4.99M in 2026, while Microsoft blocks about 4.7 million net new malware files each day. These staggering figures illustrate that device compromise is a pervasive macroeconomic variable. In the sections below, we analyze current data on how often devices are attacked, which vectors are used, which industries are impacted, and what this means for defense.

What Are Compromised Devices Statistics?

Compromised devices statistics are metrics that quantify how often, how severely, and in what ways devices (desktops, servers, smartphones, IoT devices) are breached by attackers. This includes breach counts, infection rates by OS, attack vectors (e.g., phishing vs. exploits), costs of breaches, and so on. Think of it like a public health report for networks: it measures the infection rate, percentage of devices affected, the mortality cost/damage, and the transmission vector (attack methods). For example, one can analogize a stat like 8.3 million DDoS attacks mitigated by one provider in a single quarter to the number of flu cases in a city. It tells security teams how widespread the problem is. These stats matter because they highlight which devices and methods are driving breaches, guiding where to focus defenses and policies.

Consider a familiar analogy: if a computer network were a city, compromised devices statistics are the crime statistics. They tell you which neighborhoods, industries or device types are hit hardest, whether the crimes are violent ransomware or property data theft, and how quickly law enforcement detection responds. Just as crime stats inform public policy, breach stats inform cybersecurity strategy. For example, knowing that more than 97% of identity attacks are password attacks is like knowing burglars almost always enter through the front door; it tells us to reinforce that door with MFA.

Global Overview 2025–2026

We begin with key global metrics across 2025–2026. The table below compares the previous and latest edition of each source:

Key takeaways from this overview:

• Costs: Global breach costs fell from $4.88M in 2024 to $4.44M in 2025 thanks to quicker detection and containment, then rebounded to a record $4.99M in 2026. The U.S. remains far above the global average at $11.5M. Healthcare topped the industry rankings in IBM's 2024 ($9.77M) and 2025 ($7.42M) reports.
• Spread: Connected infrastructure is under intense automated attack: Cloudflare's DDoS volume rose 40% year over year in Q3 2025, and IoT botnets such as Aisuru, estimated at 1 to 4 million infected hosts, powered the largest floods.
• Vectors: Exploitation (31%) has overtaken credential abuse (13%) as the leading initial access vector in the 2026 DBIR, yet more than 97% of identity attacks are still password attacks. Ransomware's share rose to 48% of breaches, making it ubiquitous.
• Detection: The average breach lifecycle fell from 277 days in 2023 to 258 in 2024 and a nine-year low of 241 in 2025, then rose to 247 days in IBM's 2026 report. Organizations using security AI and automation extensively shortened their breach lifecycle by 80 days in 2025.

Together, these trends paint a picture of a cyber ecosystem under siege: attacks are growing in volume and sophistication, but defenders are deploying AI/automation to blunt the impact.

Sources: IBM Cost of a Data Breach, IBM 2026 study, Verizon DBIR 2025, FBI IC3 2025 report, Microsoft MDDR 2025 summary, Cloudflare Q3 2025 DDoS report.

DeepStrike's Mobile Application Penetration testing covers the phones and apps behind these numbers, not just the servers they connect to.

Cost Breakdown

Breach costs vary widely by region and sector. IBM's Cost of a Data Breach Report shows a global average of $4.99M per incident in 2026, a record high, up from $4.44M in 2025 and $4.88M in 2024. The U.S. leads all countries at $11.5M, up from $10.22M, driven by legal and notification costs. In Europe, GDPR enforcement adds to expenses: regulators issued about €1.2B in fines in 2025 (DLA Piper). For more breach-cost figures, see our data breach statistics roundup.

Within industries, healthcare recorded the highest breach costs in IBM's 2024 ($9.77M) and 2025 ($7.42M) reports and averaged $6.64M in 2026. Financial services fell from $6.08M in 2024 to $5.56M in 2025, then rose to about $6.3M in 2026. Industrial costs jumped $830,000 in 2024 to $5.56M, the largest increase of any industry, likely due to costly operational disruptions, before easing to $5.00M in 2025. High profile cases, such as a large retailer breach, can skew sector averages in any given year.

Below is a summary table of cost indicators from IBM's Cost of a Data Breach reports:

The 2025 drop in global average cost was attributed to faster breach identification and containment, while the 2026 rebound coincided with a rise in AI-enabled attacks. Either way, breach costs remain at multi million levels. Organizations using security AI and automation saved about $1.9M per breach in 2025 and $1.93M in 2026, highlighting the financial benefit of investing in security automation.

Attack Vector Distribution

Below we break down breach causes by vector:

Phishing/Social Engineering: Still a top initial attack path. Verizon's 2025 DBIR found phishing was the initial access vector in 16% of breaches, and the 2024 DBIR found the median time for users to fall for a phishing email is less than 60 seconds. Phishing driven breaches tend to be costly, about $4.8M on average in IBM's 2025 report, because they can lead to broad network compromise. Attacks often combine phishing with stolen credentials: credential abuse appears at some stage in 39% of breaches in the 2026 DBIR.

Ransomware: Present in nearly half of breaches: 48% in the 2026 DBIR, up from 44% in 2025. Ransomware is both attack vector and outcome; it often follows initial access via phishing or vulnerabilities. Verizon notes ransomware accounted for 75% of System Intrusion breaches in its 2025 report. Fewer victims are paying: 69% did not pay in the 2026 DBIR, up from 64%, and Chainalysis estimates ransomware payments fell to about $820M in 2025.

Supply Chain: These attacks exploit trust in third party software or services. A Gartner survey found 45% of organizations experienced third-party-related business interruptions during the past two years, and Verizon's 2026 DBIR found third-party involvement in 48% of breaches, up 60%. IBM puts supply chain compromises at $4.91M per breach in 2025. Recent incidents e.g. Log4j, SolarWinds show high impact: a single compromised library can seed thousands of organizations.

Misconfigurations/Cloud: As enterprises adopt hybrid/multi-cloud, misconfigured cloud services (open S3 buckets, exposed APIs) are increasingly a factor. IBM reported 40% of breaches involved data stored across multiple environments, and breaches solely involving public clouds were the most expensive type at $5.17M in 2024. Misconfiguration by itself can lead to large data leaks.

Stolen Credentials: Attackers frequently use leaked or phished logins. Verizon's 2025 DBIR found credential abuse was the initial access vector in 22% of breaches, and about 88% of Basic Web Application Attacks breaches involved stolen credentials. IBM puts breaches that start with compromised credentials at $4.67M. Huge credential dumps drive credential stuffing: in November 2025, Have I Been Pwned loaded 1.96B email addresses and 1.3B passwords from the Synthient dataset.

Insider Threats: Less common but costly when they occur. In IBM's 2025 report, malicious insider attacks were the costliest initial vector for the second year in a row at $4.92M. These include malicious or compromised employees leaking data. Insider breach costs rival those of external breaches, but detection is harder.

AI/Deepfake Phishing: A new and emerging vector. Attackers use generative AI to craft highly convincing spear phishing emails or fake identities. The Microsoft Digital Defense Report notes that more than 97% of identity attacks are still password attacks, but Microsoft reports AI-automated phishing reaches a 54% click-through rate versus 12% for traditional phishing. IBM's 2026 study found 1 in 4 malicious breaches were AI-enabled. We expect this threat to grow.

Industry Breakdown

Different sectors face different risk profiles:

• Healthcare: Consistently highest costs. Average breach cost was $7.42M in IBM's 2025 report and $6.64M in 2026. Connected medical devices often run legacy software that is hard to patch, making them prime targets. Data medical records are both highly regulated and valuable, so breaches lead to heavy fines and patient safety impacts. The 2024 Change Healthcare breach, one of the largest, showed how a single provider compromise can disrupt an entire ecosystem.
• Finance & FinTech: Financial firms see frequent attacks, business email compromise, banking trojans with per incident costs of $5.56M in 2025 and about $6.3M in 2026 (IBM). Banking trojans on Android, credential stuffing and ATM skimmers drive many incidents. However, these firms invest heavily in security.
• Technology/Telecom: Tech companies hold valuable IP and cloud data, so breaches here are costly. Cloud service providers have broad impact: e.g. exploits of cloud control plane APIs can cascade. Tech firms also are early adopters of security tech, which helps detection.
• Manufacturing/Industrial: With the rise of IIoT and smart factories, manufacturers see rising attacks. IBM reports industrial breach costs rose $830,000 in 2024 to $5.56M, the largest increase of any industry, before easing to $5.00M in 2025. OT systems SCADA, PLCs now connect to IT networks, enabling ransomware. Production downtime drives these costs up.
• Retail & e-Commerce: Often targeted by credential stuffing and card skimmers. Attackers use bots to scalp goods and test stolen cards. While per breach costs are typically below healthcare, the volume of incidents is high. Notably, retail has seen increases in third-party supply chain attacks (e.g., hacked POS software).
• Government & Education: Public sector breaches (e.g., K-12 schools and universities) also climb. Microsoft's 2026 report found government agencies were the most targeted sector at 27% of observed threat activity. These sectors often have limited security budgets, so recovery is harder, and costs include restoration of citizen data and services. Regulatory scrutiny (e.g., FERPA, FISMA) also adds to fallout.

In summary, healthcare stands out as the most financially and operationally impacted by device compromises. SMBs in all sectors also endure a heavy volume of attacks; though each may cost less, many small firms lack backup and go under after a breach. Critical sectors like energy and telecom now face increasingly frequent high cost events often nation state or ransomware driven, as IT/OT convergence brings devices into play.

Regional Breakdown

Globally, cyber risk is uneven.

• North America U.S./Canada: The U.S. remains the primary target. According to Microsoft’s 2026 Digital Defense Report, the U.S. accounted for 25.5% of observed cyber threat activity from January 2025 to June 2026, the most of any country, primarily due to its economic prominence. U.S. breach costs are the highest at $11.5M in IBM's 2026 report, driven by regulatory fines and litigation. Cloudflare ranked the U.S. as the most-attacked location for DDoS in Q3 2026. The robust cyber insurance market in the U.S. both reflects and fuels targeting attackers who know paydays are possible.
• Europe / MENA: EU regulators collectively issued about €1.2B in GDPR fines in 2025, closely matching the 2024 total, and personal data breach notifications rose 22% to an average of 443 per day (DLA Piper). ENISA's 2025 Threat Landscape found phishing behind about 60% of observed EU intrusions. The UK and Germany saw surges in hacks on critical infrastructure often politically motivated. Overall, Europe grapples with both financial crime and nation state spillover e.g. cyber in Russia Ukraine conflict affecting NATO allies.
• Asia Pacific APAC: APAC is a mixed landscape. Countries like Indonesia and India are major sources of botnet traffic, and Cloudflare reported Indonesia as the largest source of DDoS attacks for a year until Q4 2025, when Bangladesh overtook it and Indonesia fell to third. APAC firms face increasing fraud and ransomware. Japan, Australia, and Singapore see aggressive state sponsored campaigns too.
• Latin America / Africa MEA: These regions see rising attack volume but lower monetary valuations per breach. e.g. Nigeria is a known hub for cybercrime especially mobile scams and banking fraud, while oil/gas firms in the Middle East report targeted OT attacks. Data on costs here is sparser, but disruption is high. Regulatory enforcement like LGPD in Brazil is also tightening, so expect costs to climb.

In short, while the U.S. and Western Europe face the highest per-incident costs and volumes, many emerging regions serve as cyber launchpads botnets, carding crews that fuel global campaigns. Geopolitical hotspots Russia/China vs. NATO, Iran tensions clearly drive spikes in cyber operations, as does transnational organized crime.

Major Breaches of 2024–2025

Several high profile incidents illustrate these trends:

• Chinese Surveillance Data Leak June 2025: Researchers reported an unsecured database containing about 4 billion records on Chinese users WeChat, Alipay, etc. exposed online. Believed to be linked to surveillance or data aggregation, this leak underscores the risks when data is poorly protected. Researchers described it as the largest known single source leak of Chinese personal data.
• CrowdStrike Update Incident Jul 2024: An errant CrowdStrike agent update caused blue screen crashes on ~8.5 million Windows endpoints worldwide. Though not malicious, it demonstrated how a flaw in security software can mimic a mass compromise, temporarily disabling emergency services and day to day operations. It highlighted the monoculture risk of heavily centralized endpoint agents.
• Qantas Airlines Breach Jul 2025: Qantas disclosed a breach affecting 5.7 million customers after attackers targeted a third party call center platform; reporting linked the attack to the Scattered Spider gang. Names, emails, and Frequent Flyer data were exposed. No financial data was stolen, but the incident via social engineering demonstrated how extensive damage can occur via supply chain attack paths.
• McDonald’s McHire Leak Jul 2025: Security researchers found that the McHire AI based applicant system exposed up to 64 million applicant records (applications, not unique people). A test admin account using the trivial password 123456 and an IDOR flaw made the data accessible; Paradox.ai fixed the issue after it was reported. This wasn't a malware exploit at all, but a glaring misconfiguration/oversight, revealing how insecure AI platforms can leak PII at scale.
• Co-op UK Cyberattack Apr 2025: One of the UK’s largest retailers suffered an attack that disrupted stores and exposed data on its 6.5 million members. Attackers linked in reporting to Scattered Spider reportedly used social engineering to gain access and move laterally. Notably, Co-op’s quick IT shutdown limited encryption damage, but the data theft underscores that data extortion is now separate from system encryption.
• Allianz Life Jul 2025: A U.S. unit of Allianz was breached via a third party cloud CRM. Attackers used social engineering to access the CRM, exposing personal data on most of the insurer’s 1.4 million U.S. customers. This supply chain incident highlights how any connected service can serve as a backdoor to huge data troves.
• Ingram Micro Ransomware Jul 2025: The IT supply chain giant Ingram Micro was hit by SafePay ransomware, disrupting ordering and hardware distribution worldwide for about a week. A later notification said the attack affected about 42,000 people. The attack showed the cascading impact on hardware availability and partners, emphasizing risk in interconnected B2B ecosystems.

Each of the above illustrates a key point: successful compromises often exploit human or supply chain weaknesses, social engineering, and misconfigured platforms to reach high value targets. They also show the diversity of systems involved, from cloud services and web platforms such as McDonald's McHire hiring site to legacy IT.

Emerging Trends 2025–2026

Several notable trends have emerged in 2025–2026:

• AI Driven Offense: Attackers are adopting AI to supercharge attacks. Generative AI is used to craft hyper realistic phishing emails and deepfake lures. Microsoft reports identity-based attacks rose 32% in the first half of 2025, with more than 97% still password attacks (Microsoft Digital Defense Report). IBM's 2026 study found 1 in 4 malicious breaches were AI-enabled, a 56% increase over the prior year. State actors are using AI to scan for vulnerabilities at unprecedented speed. Despite this, fully autonomous AI malware is still nascent; most AI use is in toolkit and social engineering.
• AI Enhanced Defense: On the flip side, defenders are using machine learning for threat hunting. Microsoft now processes more than 165 trillion security signals per day, up from 100 trillion in its 2025 report and from the volumes cited in its 2024 Digital Defense Report. According to IBM, organizations using AI/automation in security extensively shortened their breach lifecycle by 80 days and saved about $1.9M per breach in 2025, and $1.93M in 2026. In other words, AI can dramatically shorten dwell time when properly applied.
• Identity as Perimeter: The industry is shifting focus from network perimeter to identity. Identity attacks, phishing, password spray eclipsed many traditional exploit methods. Microsoft says more than 97% of identity attacks are password attacks. Credential abuse appears at some stage in 39% of breaches in the 2026 DBIR. MFA and zero trust architectures are becoming the new baseline and it works: Microsoft notes MFA can block over 99% of identity-based attacks.
• Supply Chain and IoT Risks: Recent supply chain attacks e.g. SolarWinds, Log4Shell have put all organizations on high alert. Verizon's 2026 DBIR found third-party involvement in 48% of breaches. Pre-installed malware BadBox style and unvetted hardware/components continue to slip into enterprises. IoT itself is a massive vulnerability: default credentials and unpatched firmware remain common. The emergence of botnets like Aisuru, which Cloudflare estimated at 1 to 4 million infected hosts before law enforcement dismantled it in early 2026, shows how insecure IoT can be weaponized at scale.
• Ransomware Evolution: Ransomware remains a top threat but with tactical shifts. Encryption is now sometimes optional: attackers often exfiltrate data to extort victims without triggering backups. The Verizon DBIR notes pure extortion (no encryption) is rising. Ransom attacks are more targeted ("big game hunting") against large companies, hospitals, and critical infrastructure. Ransomware was present in 48% of breaches in the 2026 DBIR, yet 69% of victims did not pay, and Chainalysis estimates payments fell to about $820M in 2025 from a revised $892M in 2024.
• Supply Chain Hardware/Software and Quantum Threat: Concerns are growing over dirty hardware and future attacks. A wave of attacks through compromised electronics supply chain BadBox 2.0 affected firmware on millions of consumer IoT devices. On the horizon is the harvest now, decrypt later threat: adversaries are collecting encrypted data now via breaches or intercepts in hopes that quantum computers will decrypt it in the next decade. NIST has begun formalizing post quantum crypto standards in anticipation.

What These Statistics Mean

The statistics above translate into clear strategic imperatives:

• Assume Compromise: With devices so easily breached, organizations must operate under the assumption of compromise. Breach lifecycles still average 247 days (IBM 2026), up from 241 days in 2025 though still below 258 days in 2024, which means attackers roam freely unless caught. Thus, zero trust principles verifying every user/device access dynamically are essential. Real time monitoring and segmenting networks limit blast radius.
• Prioritize Identity and Data Security: Since more than 97% of identity attacks are password attacks, protecting credentials and sessions is paramount. Phishing resistant MFA hardware keys, FIDO2 is no longer optional; Microsoft says MFA can block over 99% of identity-based attacks. Similarly, encrypting sensitive data everywhere even on IoT can mitigate damage when devices are lost or stolen.
• Leverage AI Defensively: The data show AI yields significant risk reduction when used for defense. Automated threat detection and response shave weeks off breach response and save millions. Organizations lagging in AI will fall behind; IBM's 2026 study found those using AI and automation in security operations saved $1.93M per breach on average. See our cybersecurity statistics roundup for more.
• Strengthen Supply Chain Vetting: Given the skyrocketing supply chain threats, firms must demand transparency SBOMs from vendors, perform rigorous code audits, and use third party risk management. Continuous scanning for dependency vulnerabilities like Log4j patching should be ingrained. The costs of neglect are skyrocketing supply chain incidents can affect thousands through a single vulnerability.
• Invest in Resilience: Even the best defenses will fail occasionally. Rapid recovery backups, incident playbooks are now survival critical. Preparing for worst case scenarios air gapped backups, manual workflows limits the long term damage of an inevitable breach.

Overall, the numbers emphasize a shift from preventive keep attackers out to a resilience mindset of expecting that they will get in. Cybersecurity must be budgeted not just as cost avoidance, but as an essential insurance for the global digital economy.

Best Practices

Based on the above insights, organizations should:

• Adopt Strong MFA and Identity Controls: Require phishing resistant methods, hardware tokens, FIDO2 for all privileged and high risk accounts. Microsoft says MFA can block over 99% of identity-based attacks. Regularly audit and rotate credentials, and monitor for leaked password re-use via breach feeds.
• Implement Zero Trust: Enforce strict network micro segmentation and conditional access: trust no device or network by default. Use EDR/XDR tools to continuously evaluate device health and user behavior before granting access.
• Harden IoT/OT Assets: Change all default passwords on IoT/OT devices and apply the latest firmware patches. Segment IoT networks away from core IT. Where employee phones and companion apps touch those networks, What Is Mobile Application Penetration Testing explains how that layer gets validated. Use intrusion detection for unusual IoT traffic. For industrial networks, employ strict network separation and least privilege controls e.g. jump boxes instead of direct access.
• Secure the Software Supply Chain: Maintain a Software Bill of Materials SBOM for all deployed software. Vet third party components and libraries for vulnerabilities. Keep systems up to date with patches especially on VPNs, firewalls, cloud management consoles. Apply defense in depth: assume a breached library and monitor its behavior at runtime.
• Invest in Threat Detection AI/Automation: Deploy SIEM/SOAR solutions with AI analytics to spot anomalies. Leverage threat intelligence feeds for known IoCs e.g. APT domains, botnet IPs. Aim to cut mean time to detect/contain MTTD/MTTC: IBM found extensive use of security AI and automation shortened the breach lifecycle by 80 days in 2025.
• Test Resilience: Conduct regular incident response drills and backup recoveries. Ensure backups are isolated/offline immune to on network ransomware. Plan to operate while compromised modes e.g. paper processes. Breach preparation is now as important as breach prevention.
• Educate and Simulate: Train employees on phishing/social engineering risks. Use red team exercises e.g. spear phishing simulations to measure and improve human defenses. Empower security teams with tabletop exercises focused on emerging threats AI, IoT exploitation, etc..

By treating these statistics as actionable intelligence, not just alarming news organizations can align resources to where they’re most needed. The era of fortress perimeter is over; resilience, visibility, and identity centric security are the new basics.

FAQs

• What is considered a compromised device?

A compromised device is any endpoint desktop, mobile, server, IoT gadget whose security has been breached. This means an attacker has gained unauthorized access or control, potentially altering or exfiltrating data. Common signs include unknown processes, unusual network traffic, or alerts from antivirus/EDR tools. For statistics purposes, a device is counted as compromised if it played a role in a confirmed breach or infection.

• How common are device compromises worldwide?

Extremely common. The FBI's IC3 received 1,008,597 cybercrime complaints in 2025, up from 859,532 in 2024, with reported losses of $20.877B. Globally, Microsoft blocks about 4.7 million net new malware files every day, and Cloudflare mitigated 18.2 million network-layer DDoS attacks in Q3 2026 alone. In short, cyber incidents affect organizations continuously, making compromises a daily reality.

• Which devices and operating systems are most often compromised?

By sheer volume, Windows PCs lead, because of Windows' dominant desktop share and large legacy code base. Among non desktops, Android suffers heavy infection rates banking trojans, adware due to its open app ecosystem. IoT devices cameras, routers, embedded controllers are increasingly targeted in mass scanning botnets; Cloudflare estimated the Aisuru botnet alone at 1 to 4 million infected hosts. Linux powers much of the public cloud, and attacks on Linux servers SSH brute force, webshells, cryptominers have surged; Microsoft found exposed cloud workloads were attacked after an average of 5.3 hours.

• What are the top methods attackers use to compromise devices?

The 2026 Verizon DBIR shows exploitation of vulnerabilities is now the top initial access vector at 31%, while credential abuse is the entry point in 13% of breaches and appears at some stage in 39%. Microsoft reports more than 97% of identity attacks are password attacks. Ransomware, often delivered after phishing or an exploited edge device, is present in 48% of breaches, and third parties are involved in 48%. Patching speed matters: only 26% of CISA KEV vulnerabilities were fully remediated in 2025.

• How much do data breaches cost businesses on average?

IBM's 2026 Cost of a Data Breach report found a record global average of $4.99 million per breach, up from $4.44 million in 2025. This varies by region: the U.S. average is about $11.5 million, while some countries see lower figures. Costs include incident response, legal fines, lost business, and remediation. Healthcare breaches averaged $6.64 million in 2026 and financial services about $6.3 million, while AI-enabled malicious breaches averaged about $6 million. In contrast, small breaches may only cost hundreds of thousands.

• Which industries face the highest risk or cost from compromised devices?

Healthcare is consistently the riskiest financially, with the highest breach costs in IBM's 2024 ($9.77M) and 2025 ($7.42M) reports and $6.64M in 2026. Financial services averaged about $6.3M in 2026, and banks and payment firms face constant attacks, while retail sees frequent point of sale and e-commerce attacks. Manufacturing/Industrial is catching up as a target due to ICS vulnerabilities; it saw the largest cost increase in 2024 (IBM: up $830,000 to $5.56M) because outages are so expensive. Government agencies were the most targeted sector in Microsoft's 2026 report at 27% of observed threat activity, and Government and Education have varied budgets for recovery. Overall, industries with high value data-health records, financial info, IP and low tolerance for downtime pay the most.

• How can organizations protect devices against being compromised?

Based on current stats, key steps are:

• Enable strong multi factor authentication MFA: Microsoft reports MFA can block over 99% of identity-based attacks.
• Patch and configure thoroughly: keep systems especially IoT and cloud services up to date and avoid default credentials.
• Segment networks & enforce zero trust: assume devices may be breached; limit lateral movement.
• Monitor and respond with AI/EDR: use AI driven tools to detect anomalies faster; IBM found organizations using AI and automation in security saved $1.93M per breach on average in 2026.
• Educate users: since phishing remains a top initial access vector and more than 97% of identity attacks are password attacks, training and simulated phishing exercises are critical. These measures, if diligently applied, can dramatically reduce the window of attacker control and mitigate damage.

The 2025–2026 data paint a stark reality: devices worldwide are under relentless attack. Ubiquitous connectivity and sophisticated attackers mean compromises are the norm, not the exception. While defenders are leveraging AI and better visibility to shorten breach lifecycles, adversaries are exploiting the same AI to craft deeper phishing campaigns. The stats underscore one lesson: no device is invulnerable. The path forward is a security posture built on resilience, assuming breaches will happen and focus on containment and recovery. In an era of billions of connected devices, success will go to those who secure not by perfection of defenses, but by the speed and robustness of their response when the inevitable breach occurs.

About the Author

Mohammed Khalil is a Cybersecurity Architect at DeepStrike, specializing in advanced penetration testing and offensive security operations. With certifications including CISSP, OSCP, and OSWE, he has led numerous red team engagements, focusing on cloud security, application vulnerabilities, and adversary emulation. His work involves dissecting complex attack chains and developing resilient defense strategies for clients in the finance, healthcare, and technology sectors.