59 Insider Threat Statistics You Need to Know in 2026
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Insider risk now costs organizations $19.5 million annually on average, up 12% from two years ago. Key findings: 83% of organizations experienced at least one insider incident in the past year, with 53% caused by negligence rather than malice. Shadow AI has emerged as a major new vector, with breaches tied to unsanctioned AI tools costing $4.63 million on average. GitGuardian detected 28.65 million hardcoded secrets in public GitHub commits in 2025, a 34% year-over-year increase, and AI-assisted commits leak secrets at double the platform baseline. Departing employees remain a critical risk — 83% retain access to former employer accounts after leaving. Organizations with mature insider risk programs detect incidents in under 31 days and save roughly $8.2 million annually compared to the global average. Key recommendations include tightening offboarding and access revocation, scanning repositories and collaboration tools for leaked credentials, and establishing AI governance policies before employees create de facto ones.
