Daily Signal - page 21A daily journal at the intersection of AI and cybersecurity. Thursday, April 23, 2026 DeepSeek Releases V4 Preview: Largest Open-Weights Model at 1.6T Parameters Under MIT License deepseek · ai-launch · model-release · llm Cisco Discovers Memory Vulnerability in Anthropic AI Agent Framework anthropic · llm · ai-safety · vulnerability · appsec Checkmarx Supply Chain Attack Compromises Bitwarden CLI and KICS Analysis Tool supply-chain · npm · cve · appsec · devsecops OpenAI Releases GPT-5.5: Next-Generation Model Targeting Complex Tasks openai · ai-launch · model-release · llm Unit 42 Zealot PoC Demonstrates AI Agents Autonomously Attacking Cloud Environments cloud-security · llm · appsec · aws Vercel Expands Breach Scope: More Accounts Compromised in Context.ai-Linked Incident data-breach · supply-chain · appsec Microsoft Defender Zero-Day Exploited to Dump NTLM Hashes and Gain SYSTEM Privileges zero-day · vulnerability · cve · microsoft · privilege-escalation Wednesday, April 22, 2026 Apple Patches iOS Bug That Let FBI Recover Deleted Signal Messages via Retained Notifications vulnerability · apple · privacy · ios ← Newer Page 21 of 30 Older →
DeepSeek Releases V4 Preview: Largest Open-Weights Model at 1.6T Parameters Under MIT License deepseek · ai-launch · model-release · llm
Cisco Discovers Memory Vulnerability in Anthropic AI Agent Framework anthropic · llm · ai-safety · vulnerability · appsec
Checkmarx Supply Chain Attack Compromises Bitwarden CLI and KICS Analysis Tool supply-chain · npm · cve · appsec · devsecops
OpenAI Releases GPT-5.5: Next-Generation Model Targeting Complex Tasks openai · ai-launch · model-release · llm
Unit 42 Zealot PoC Demonstrates AI Agents Autonomously Attacking Cloud Environments cloud-security · llm · appsec · aws
Vercel Expands Breach Scope: More Accounts Compromised in Context.ai-Linked Incident data-breach · supply-chain · appsec
Microsoft Defender Zero-Day Exploited to Dump NTLM Hashes and Gain SYSTEM Privileges zero-day · vulnerability · cve · microsoft · privilege-escalation
Apple Patches iOS Bug That Let FBI Recover Deleted Signal Messages via Retained Notifications vulnerability · apple · privacy · ios