Risky Bulletin Risky Bulletin

Risky Bulletin: US warns of AI-assisted attacks against Siemens PLCs

Aug 21, 2026 · 6m

Summary

This episode covers CISA and FBI warnings about AI-driven attacks on Siemens PLCs, a major data breach of Latvian citizens, and a supply chain compromise of Rust libraries linked to North Korea. Other stories include malicious Firefox extensions, phishing campaigns targeting security researchers, and a new Android Trojan affecting Ukrainian banks. The bulletin also details exploits in Zimbra and GitLab, a novel CDN DDoS technique, and Cloudflare’s updated protections against Spectre CPU vulnerabilities.

Topics discussed

Introduction and episode headlines CISA warns of AI-aided attacks on Siemens PLCs Latvia road traffic agency data breach Supply chain attack on Rust libraries Malicious Firefox extensions removed Phishing campaign targeting security researchers Phishing toolkit enrolling attacker passkeys Manik Android Trojan targeting Ukraine Source code links Chinese firm to Great Firewall Exploitation of patched Zimbra vulnerability Recent GitLab vulnerability exploitation CDN tsunami DDoS technique discovered Cloudflare Spectre vulnerability protections
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