Cyber Daily News for April 21, 2026

Cyber Daily News for April 21, 2026 Cyber Daily News is also available via podcast! https://feeds.transistor.fm/cyber-daily-news Stories mentioned in today's briefing: - North Korean Blamed for $290m KelpDAO Crypto Heist https://www.infosecurity-magazine.com/news/north-korean-blamed-290m-kelpdao/ - U.S. CISA adds Cisco Catalyst, Kentico Xperience, PaperCut NG/MF, Synacor ZCS, Quest KACE SMA, and JetBrains TeamCity flaws to its Known Exploited Vulnerabilities catalog https://securityaffairs.com/191080/hacking/u-s-cisa-adds-cisco-catalyst-kentico-xperience-papercut-ng-mf-synacor-zcs-quest-kace-sma-and-jetbrains-teamcity-flaws-to-its-known-exploited-vulnerabilities-catalog.html - The US NSA is using Anthropic's Claude Mythos despite supply chain risk https://securityaffairs.com/191087/ai/the-us-nsa-is-using-anthropics-claude-mythos-despite-supply-chain-risk.html - ZionSiphon Malware Targets Water Infrastructure Systems https://www...