Cyber Security Briefing Briefing — September 20, 2026
Sunday, September 20, 2026
Today's briefing brings you 2 stories across cloud security and endpoint from the global cybersecurity industry. Leading today: Brevo hack: 100,000+ websites serve malware for hours in a supply chain attack - Cybernews.
cloud-security
This appears to be a supply-chain compromise that turned a trusted email or web service into a malware delivery path for many downstream sites. For defenders, the issue is not just the breach at the vendor but the short-lived exposure window across customer sites that may have been used to push malicious redirects or payloads.
Identity, Cloud & Software Supply Chain
endpoint
This appears to be a malware and credential-theft story tied to an Iran-linked actor. For defenders, the immediate concern is password exposure on Telegram-focused systems and the need to look for compromise in accounts, endpoints, and messaging workflows that could be used for follow-on access.
Threat Actors & Campaigns