Zero-day exploit completely defeats default Windows 11 BitLocker protections

2026-05-15T08:51:52Z909e5c4849ffe7fcb20595c86b22c90d6c86419a3ed299a6e0d74daa6059282a
ai-assisted-fuzzingasp.netbackdoorbitlockercanvascopyfailcredential-theftdaemon-toolselement-dataincident-responselinuxmythospatch-managementpost-quantumransomwareroot-privilegesupply-chainubuntuvulnerabilitywindows-11zero-day

What happened

A cluster of high-impact incidents and vulnerabilities reported in May 2026: a Windows 11 zero‑day that reportedly defeats default BitLocker protections (Microsoft investigating); multiple severe Linux vulnerabilities including CopyFail and at least one root‑granting flaw with emergency production patches rolling out; a month‑long supply‑chain backdoor in Daemon Tools; an open‑source package (element-data) exfiltrating credentials; a cyberattack disrupting the Canvas learning platform amid finals; Ubuntu infrastructure outages hampering vulnerability communication; and emergency ASP.NET fixes,

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
arstechnica_security
Record identifier
909e5c4849ffe7fcb20595c86b22c90d6c86419a3ed299a6e0d74daa6059282a
Enrichment time
2026-05-15T08:51:52Z
AI-assisted enrichment
Yes

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