Claude AI Just Cracked a Post-Quantum Test Scheme and Found a Faster 7-Round AES Attack
Anthropic says Claude Mythos Preview helped derive an end-to-end key-recovery attack against HAWK-256 and a 200- to 800-fold
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USN-8561-2: FreeRDP regression
USN-8561-1 fixed vulnerabilities in FreeRDP. Unfortunately, the upgrade to version 3.30.0 introduced a regression in the clipboard functionality.
RHSA-2026:47176: Important: gstreamer1-plugins-bad-free security update
An update for gstreamer1-plugins-bad-free is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat
Progress Software security advisory (AV26-755)
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Claude Mythos Preview Discovers Cryptographic Weaknesses That Human Experts Missed for Years
Anthropic researchers using Claude Mythos Preview have uncovered mathematical flaws in major cryptographic algorithms that human experts failed
CISA shares advice on isolating vital systems during cyberattacks
The U.S. and Australian governments have released new guidance urging critical infrastructure organizations to prepare to isolate vital
vBulletin fixes critical pre-auth RCE flaw with public exploit
A critical vulnerability in the vBulletin forum software allows unauthenticated attackers to execute arbitrary PHP code through template
RHSA-2026:47174: Important: gstreamer1-plugins-good security update
An update for gstreamer1-plugins-good is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
DSA-6401-1 samba – security update
https://security-tracker.debian.org/tracker/DSA-6401-1
Top 10 Phishing Kits Used by Hackers to Launch Cyberattacks (July 20-26, 2026)
Global phishing-as-a-service (PhaaS) activity surged to 7,295 tracked uploads during the week of July 20-26, 2026, driven overwhelmingly
Chrome Extension Monitors AI Conversations Across ChatGPT, Claude, Gemini, and Other Platforms
A Chrome extension with roughly 100,000 installs is quietly harvesting every prompt and AI response typed across nine