VulnerabilityRapid7 Blog·6 hours ago
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VulnerabilityTrail of Bits·1 week ago
How Trail of Bits helps verify the integrity of your Signal chats
Signal has deployed Automatic Key Verification, a new feature that validates chat security without requiring users to manually compare safety numbers, using cryptographic auditing to ensure the Signal server isn't performing key substitution attacks. Trail of Bits operates one of three independent auditors that continuously verify the system's integrity by maintaining signed Merkle trees of the user-to-public-key mapping, limiting any potential malicious server compromise to a one-week window before client warnings trigger. Users can enable this feature in Signal's privacy settings, with the system requiring valid signatures from all three auditors (operated by Signal, Cloudflare, and Trail of Bits) within the past seven days to prevent undetected mismatch attacks.
Read full article at Trail of Bits ↗Related Articles
VulnerabilityThe Hacker News·8 hours ago
⚡ Weekly Recap: AI-Powered PLC Attacks, GitLab Attacks, Stripe Key Leaks and More
A package gets installed. A login prompt opens. A box sits exposed to the internet. Nothing looks unusual yet. That’s roughly the mood this week. Trusted tools turn hostile, old weak spots get fresh attention, AI makes exploit work cheaper, and researchers keep finding attacks that sound harder than they actually are. Plenty to clean up. Here’s the short version. ⚡ Threat of the Week U.S.
VulnerabilityDark Reading·9 hours ago
The Vulnerability Gap: Why Discovery Is Outrunning Repair
AI is discovering more vulnerabilities, faster, and under a tightening regulatory environment, making this an all-hands-on-deck moment for the cybersecurity community.
VulnerabilityCISA Advisories·11 hours ago
CISA Adds One Known Exploited Vulnerability to Catalog
CISA has added CVE-2026-21962, an improper access control vulnerability affecting Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in, to its Known Exploited Vulnerabilities Catalog based on confirmed active exploitation. The vulnerability poses significant risk as it allows total asset compromise post-exploitation, and CISA's Binding Operational Directive 26-04 requires federal agencies to prioritize rapid remediation of such high-risk KEV Catalog entries on publicly exposed systems. CISA encourages all organizations to adopt risk-based vulnerability management practices and prioritize remediation of cataloged exploited vulnerabilities.