CISA shares advice on isolating vital systems during cyberattacks

Published on July 28, 2026

The U.S. and Australian governments have released new guidance urging critical infrastructure organizations to prepare to isolate vital operational technology systems in the event of a cyberattack or other major disruptions. [...]

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vBulletin fixes critical pre-auth RCE flaw with public exploit

July 28, 2026
A critical vulnerability in the vBulletin forum software allows unauthenticated attackers to execute arbitrary PHP code through template rendering. [...]

Claude AI Just Cracked a Post-Quantum Test Scheme and Found a Faster 7-Round AES Attack

July 28, 2026
Anthropic says Claude Mythos Preview helped derive an end-to-end key-recovery attack against HAWK-256 and a 200- to 800-fold speedup for an attack on seven-round AES-128.The HAWK attack exploits a previously unused symmetry in the lattice behind the signature scheme. Anthropic's released implementation gives an expected end-to-end runtime of about three hours and 42 minutes on a 96-core server