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ShieldBreak Zero-Day PoC Claims Microsoft Defender Patch Bypass With SYSTEM Access

Researcher Chaotic Eclipse released ShieldBreak PoC, a claimed patch bypass for Microsoft Defender flaw CVE-2026-50656, now tracked as CVE-2026-69414.

Researcher Chaotic Eclipse released a PoC for ShieldBreak, a claimed full patch bypass of Microsoft Defender flaw CVE-2026-50656 (RoguePlanet), which can yield SYSTEM privileges. Independent researchers Kevin Beaumont and Will Dormann validated the exploit on Windows 11 25H2 and Windows Server 2025, noting it requires Defender to be enabled. Microsoft assigned CVE-2026-69414 (CVSS 7.8) with an 'Exploitation More Likely' assessment and is investigating, but has not yet released a patch. The article also notes CISA's KEV addition of the actively exploited Windows AFD.sys flaw CVE-2026-68820.

Hackers drain $320M in Bitcoin from Liquid Network, claim they're the good guys

Attackers withdrew about 4,000 BTC (~$320M) from Liquid Network's federation wallet via a SideSwap peg-out, claiming whitehat status.

Hackers drained roughly $320 million in Bitcoin — about 4,000 BTC, 95% of holdings — from the federation wallet backing Blockstream's Liquid Network sidechain. The withdrawal occurred through SideSwap using its Peg-out Authorization Key (PAK), yet no PAK appears to have been compromised, and the exact mechanism remains under investigation. The actors embedded an on-chain message identifying themselves as whitehats, asked Blockstream to patch federation nodes first, and promised to return most of the funds after fixes are confirmed. Liquid disabled its bridge nodes and asked exchanges to suspend L-BTC deposits and withdrawals; other Liquid assets and the Bitcoin network were unaffected.

The Register · Security · 9d agoExploit / PoC in the wild