Weekly Cybersecurity Threat Briefing — June 15, 2026
**Your weekly rundown of the threats that matter most to small businesses.** Another week, another reminder that attackers don't take days off. This was one of the biggest patch weeks in recent memory — Microsoft alone fixed 200 vulnerabilities — and a few of the threats this week directly target tools that small businesses and MSPs use every day. Here's what you need to know and what to do about it. --- ## 1. Microsoft's Biggest Patch Tuesday of 2026: 200 Vulnerabilities Fixed **Risk Level: 🔴 Critical** Microsoft released its June Patch Tuesday updates on June 10, and it was massive — 200 vulnerabilities patched in a single release. That's the largest of the year. Among them: - **33 Critical vulnerabilities**, including 28 remote code execution (RCE) flaws ([Zecurit breakdown](https://zecurit.co/patch-tuesday-june-2026/)) - **3 publicly disclosed zero-days** (vulnerabilities that were known before the patch) - **6 Critical RCE flaws in Remote Desktop Client alone** — ...
