Penetration Testing Statistics 2026: Trends, Costs & ROI

Penetration testing has shifted from a compliance checkbox to a board-level KPI, and the numbers explain why: vulnerabilities are being published at a record pace, many breaches still trace to known, unpatched flaws, and organizations are pouring money into offensive security to validate that their defenses actually work. This is a curated, sourced set of penetration testing statistics for 2026, covering market size, adoption and frequency, the vulnerabilities pentests keep finding, the remediation gap, industry differences, and the AI-era trends reshaping the field.

Updated: November 2026. Market data from Fortune Business Insights and MarketsandMarkets; breach-cost figures from IBM's 2026 Cost of a Data Breach Report; breach-vector figures from Verizon's 2026 DBIR; remediation figures from Edgescan's 2026 Vulnerability Statistics Report; CVE counts from Jerry Gamblin's 2025 CVE data review. Older survey figures are labeled with their year and source.

Headline statistics (2026)

The one-line takeaway: spending on pentesting is rising fast, but the remediation gap and the flood of new vulnerabilities mean the testing has to be continuous, not annual, to keep up.

Market size and growth

• The global penetration testing market is roughly $3.1 billion in 2026 and projected to reach about $7.4 billion by 2034, growing at a low-double-digit CAGR, according to Fortune Business Insights market data.
• The PTaaS (penetration-testing-as-a-service) segment is around $0.72 billion in 2026 and forecast to hit $1.98 billion by 2031 in the MarketsandMarkets PTaaS forecast, growing faster than the market overall as buyers move from one-off engagements to continuous testing.
• North America holds the largest regional share, while Asia-Pacific is the fastest-growing region.

The growth story is simple: as breaches rise and regulations tighten, offensive security has become a standard line item rather than a luxury.

More market and budget data points:

• In Pentera's 2025 State of Pentesting survey of 500 CISOs and senior security executives at enterprises with more than 3,000 employees, U.S. enterprises reported spending an average of $187,000 per year on penetration testing, about 11% of their IT security budget.

Adoption and testing frequency

• PTaaS adoption is growing, reflecting the shift to continuous testing models covered in our PTaaS guide.
• 85% reported a raise in their pentesting budget in Pentera's 2023 State of Pentesting survey of 300 CIOs, CISOs, and security executives in Europe and the US.
• Many organizations still test only once or twice a year, leaving long windows where new code and new vulnerabilities go unvalidated.
• A growing cohort has moved to quarterly or continuous testing.
• Outsourcing is common: many organizations rely on third-party testers for objectivity, while many run a hybrid model that pairs external attackers' perspective with internal context.

Sourcing and staffing splits:

• Many organizations rely exclusively on third-party testers for objectivity and specialized skills.
• Others have built in-house testing capability, and many run a hybrid model, combining internal context with an external attacker's perspective.
• Regulated sectors such as finance and healthcare lead pentest adoption.

The persistent gap here is cadence: IT changes daily, but many testing programs still validate security only once or twice a year, which is the core argument for continuous penetration testing.

Vulnerability discovery and severity

• Web application flaws dominate pentest findings, and a large share of breaches involve exploiting web-app vulnerabilities.
• Weak, default, and reused passwords are consistently among the most common findings, one survey of pentesters ranked them the single most encountered issue.
• Security misconfiguration (A02 in the OWASP Top 10:2025; A05 in 2021) is a top category.
• Broken access control and weak authentication remain high-frequency, high-impact findings that lead to account takeover.
• Injection issues persist: SQL injection remains a common critical web flaw, and cross-site scripting (XSS) is still among the most reported bugs.
• Record CVE volume: a record 48,185 CVEs were published in 2025 (up 20.6% over 2024) according to the 2025 CVE data review, roughly 132 per day, far outpacing most organizations' remediation capacity, as our full vulnerability statistics breakdown shows.
• Exploitation is up: the Verizon 2026 DBIR found vulnerability exploitation was the initial access vector in 31% of breaches, up from 20% in the 2025 edition, overtaking stolen credentials as the top way attackers get in.

More findings and severity data:

• In 2025, 39.4% of published CVEs were rated High or Critical (per Jerry Gamblin's 2025 CVE data review), yet only about 6% of published CVEs have ever had observed exploitation activity in the wild (Cyentia Institute and FIRST, data through May 2024), which is exactly why exploit-based prioritization beats severity-only triage.

Most of what pentests find is not exotic. It is misconfiguration, weak credentials, and missing patches, the same fundamentals attackers exploit, which is why our software testing vs security testing guide stresses layered testing.

The remediation gap

The data's most sobering theme is that finding vulnerabilities is not the hard part, fixing them is.

• 60% of breached respondents in a 2019 Ponemon Institute survey for ServiceNow (almost 3,000 security professionals) said the breach involved a known vulnerability with an available but unapplied patch. Verizon's 2026 DBIR, which analyzes breaches directly, found vulnerability exploitation was the initial access vector in 31% of breaches.
• The average time to remediate high and critical application vulnerabilities runs on the order of weeks to months, while attackers weaponize new flaws in days.
• A large share of discovered vulnerabilities remain unremediated a year later in big enterprises, reflecting resource and prioritization constraints.
• Because fixes lag, pentests frequently rediscover the same issues engagement after engagement.

Concrete remediation data points:

• Edgescan's 2026 Vulnerability Statistics Report (covering 2025 testing data) puts the average time to remediate high and critical application and API vulnerabilities at 54.81 days, versus attackers weaponizing fresh flaws in days.
• In the same Edgescan report, larger enterprises (1,000+ employees) left 37% of vulnerabilities discovered in a 12-month period unresolved.

The lesson is that testing without a disciplined remediation and re-test loop produces reports, not risk reduction, which is why prioritization frameworks (CISA KEV, EPSS) covered in our patch management guide matter as much as the test itself.

Breach costs and ROI

• IBM's 2026 Cost of a Data Breach Report put the global average at $4.99 million, up 12% and a record high, based on 602 organizations breached between March 2025 and February 2026 (the 2025 edition reported $4.44 million). We break down costs by sector in our data breach cost analysis.
• Healthcare remained the costliest sector in IBM's 2025 report, at an average of $7.42 million per breach (a global industry average, not a U.S. figure).
• Organizations making extensive use of AI and automation in security saved an average of $1.93 million in breach costs compared with organizations using none, per IBM's 2026 report.
• The ROI case for pentesting is straightforward: the annual cost of a testing program is a rounding error against a single multi-million-dollar breach, and testing reduces the exploitable gaps available to attackers, while exercises that test detection (such as purple teaming) can help shorten the detection window. For real pricing, see our penetration testing cost guide.

Industry breakdown

Supporting industry figures:

• Healthcare: the vast majority of healthcare organizations have suffered a breach in the past three years, and IoMT plus ransomware exposure keeps costs highest of any sector.
• Retail: a large share of retail data leaks involve customer PII, pushing focus onto web, API, and payment-flow testing.

The SMB gap is the starkest: smaller firms are attacked constantly yet test the least, and a major breach can be existential for them. Our cyber attacks on small businesses analysis covers why.

Emerging trends: cloud, API, and AI

The attack surface pentests must cover has expanded well beyond the classic web app.

• APIs are a top risk. API incidents are common, yet mature API and cloud testing lags adoption. API tests routinely surface broken object-level authorization and excessive data exposure, the focus of API penetration testing.
• Cloud misconfiguration is a leading breach cause, and testing the cloud control plane is now table stakes.
• AI and LLM features are a new frontier. Reports of AI-related vulnerabilities surged in 2025, with prompt injection the fastest-growing class, and bug-bounty programs added AI targets in large numbers. The risks are catalogued in the OWASP LLM Top 10.
• AI is changing how pentesters work. Most surveyed security researchers (70% in HackerOne's 2025 Hacker-Powered Security Report) now use AI tools in their workflow, but human expertise remains essential for the creative, chained exploits automated tools miss.

Emerging-surface data points:

• In HackerOne's 2025 Hacker-Powered Security Report, 1,121 customer programs had AI in scope, and prompt injection vulnerabilities surged 540%.
• In the same HackerOne report, 70% of surveyed researchers said they use AI tools in their workflow, "bionic" testing that scales coverage without replacing human judgment.

What the statistics mean

Read together, the numbers tell a consistent story:

• Investment is rising, but so is the gap. Budgets and adoption are up, yet the flood of new CVEs and the remediation lag mean many organizations are validating security slower than their environments change.
• Fundamentals dominate findings. Misconfiguration, weak credentials, and missing patches, not zero-days, are what pentests keep uncovering and what breaches keep exploiting.
• Cadence is the differentiator. Annual testing cannot keep pace with continuous change; the organizations pulling ahead have moved to continuous or PTaaS models.
• Testing only pays off with remediation. A pentest that is not followed by prioritized fixes and re-testing produces a report, not security.

Best practices informed by the data

• Test continuously, not annually. Match validation cadence to your rate of change.
• Prioritize remediation by real exploit risk (CISA KEV, EPSS), not raw severity, and re-test to confirm closure.
• Cover the full modern surface: web, API, cloud, mobile, and AI/LLM features, not just the classic web app.
• Fix the fundamentals first: enforce phishing-resistant MFA, kill default and reused passwords, and close misconfigurations, the highest-frequency findings.
• Combine automation with human testers: scanners for coverage, skilled pentesters for the chained, business-logic exploits that automation misses.

Conclusion

The 2026 penetration testing statistics point one direction: the threat volume and the remediation gap have outgrown once-a-year testing, and the organizations reducing real risk are the ones testing continuously, prioritizing by exploitability, and actually closing what they find. Numbers on a report do not reduce risk; a disciplined test-fix-retest loop does.

DeepStrike's penetration testing is manual-first and adversary-realistic, finding the chained, exploitable issues that scanners miss and validating that your fixes hold. To scope an engagement, see our penetration testing services.

FAQ

How big is the penetration testing market in 2026?

The global penetration testing market is roughly $3.1 billion in 2026 and is projected to reach about $7.4 billion by 2034. The faster-growing PTaaS segment is around $0.72 billion in 2026, forecast to reach $1.98 billion by 2031, reflecting the industry-wide shift from one-off engagements to continuous testing.

How often do organizations run penetration tests?

Many organizations still test only once or twice a year, which leaves long windows where new code and vulnerabilities go unvalidated. A growing minority has moved to quarterly or continuous testing. Meanwhile, 96% of organizations in Pentera's 2025 State of Pentesting survey said they change their IT environment at least quarterly, so the gap between IT change velocity and testing cadence is the field's biggest weakness.

What vulnerabilities do penetration tests find most often?

The most common findings are fundamentals: weak, default, or reused passwords; security misconfiguration; broken access control; and weak authentication, alongside classic web flaws like SQL injection and cross-site scripting. Many breaches exploit these known issues rather than zero-days.

What percentage of breaches come from unpatched vulnerabilities?

In a 2019 Ponemon Institute survey for ServiceNow of almost 3,000 security professionals, 60% of respondents whose organizations had suffered a breach said it involved a known vulnerability for which a patch was available but not applied. Verizon's 2026 DBIR, which analyzes breaches directly, found vulnerability exploitation was the initial access vector in 31% of breaches. With a record 48,185 CVEs published in 2025 and high and critical application and API flaws taking an average of 54.81 days to remediate in Edgescan's 2026 report, the backlog is the core problem, which is why prioritizing by exploit risk (CISA KEV, EPSS) matters more than raw severity.

How much does a data breach cost, and how does pentesting help?

IBM's 2026 Cost of a Data Breach Report put the global average breach cost at a record $4.99 million, up 12% from $4.44 million in the 2025 edition. In IBM's 2025 report, healthcare was the costliest industry at an average of $7.42 million (a global industry average). Penetration testing helps by finding exploitable gaps so they can be closed before attackers reach them; exercises that test detection, such as purple teaming, can also help shorten detection time.

Is AI changing penetration testing?

Yes. AI-related vulnerabilities surged in 2025, with prompt injection the fastest-growing class, adding a whole new testing surface catalogued in the OWASP LLM Top 10. AI also augments how testers work: 70% of researchers surveyed for HackerOne's 2025 Hacker-Powered Security Report use AI tools in their workflow, but human expertise remains essential for creative, chained exploits automation cannot find.