Report by Beazley Security

Quarterly Threat Report: Second Quarter, 2026

6 FINDINGSPublished Aug 18, 2026
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Key Findings

Compromised credentials accounted for 67% of ransomware intrusions investigated by Beazley Security, down from 74% in Q1.

RansomwareCredentials

Newly disclosed software vulnerabilities increased 36% in Q2 2026 compared to the previous quarter.

VulnerabilitiesSoftware Security

Vulnerabilities confirmed as actively exploited and added to CISA's Known Exploited Vulnerabilities catalog increased 10% in Q2 2026 compared to the previous quarter.

VulnerabilitiesKEVExploits

Disclosure volume historically moved within a 10% band quarter-to-quarter, but rose 18.5% in Q1 2026 and 36% in Q2 2026.

VulnerabilitiesDisclosure

Public ransomware leak-site postings totaled 2,268, remaining nearly 60% above Q2 2025.

RansomwareExtortionLeak Sites

Beazley Security Labs issued 40% more critical zero-day advisories to clients than in the previous quarter.

Zero-DayVulnerabilitiesThreat Intelligence