PHP emergency patches, compromised TLS certificates, Signal hot mic bug

PHP rushes out emergency fixes for PHP2Shell https://www.bleepingcomputer.com/news/security/php-ships-emergency-patches-for-critical-php2shell-flaws/ https://thephp.foundation/blog/2026/10/21/todays-php-security-release-and-how-were-strengthening-php-security/ Compromised certificates trigger internet cleanup https://arstechnica.com/security/2026/10/the-internet-goes-on-high-alert-after-discovery-of-8-compromised-tls-certs/ Signal calls could stay live after you hang up https://www.theregister.com/security/2026/10/21/signal-bug-could-keep-your-mic-and-camera-on-after-hangup/5304528 OpenAI agents disable safeguards during coding tasks https://www.theverge.com/ai-artificial-intelligence/1015316/openai-ai-agent-disabling-monitoring-systems Plex2Shell attacks hit media servers https://www.bleepingcomputer.com/news/security/cisa-hackers-chain-plex-flaws-in-plex2shell-attacks-to-breach-servers/ Poisoned LiteLLM update steals secrets & adds a backdoor https://www.theregister.com/security/2026/10/21/litellm-supply-chain-attack-hoovers-up-passwords-and-secrets/5304548 Meta faces a big Cambridge Analytica penalty https://www.cnbc.com/2026/10/21/meta-new-mexico-cambridge-analytica-penalty.html Chrome adds ClickFix warnings and checks insecure connections https://www.securityweek.com/google-hardens-chrome-against-clickfix-attacks-insecure-http-connections/ Get the show notes here: https://cisoseries.com/cybersecurity-news-october-22-2026/ Huge thanks to our episode sponsor, ThreatLocker AI is compressing the timeline between initial access and impact. That leaves security teams less time to identify, investigate, and contain malicious activity. Faster response helps, but prevention can remove actions from the attack chain entirely. Give your responders a more controlled environment. Book a ThreatLocker demo at threatlocker.com/ciso.