The MSP Minute ⏱ Tuesday 12 May 2026
For Managed Service Providers worldwide. Today... Microsoft's biggest update in years is dropping right now... buried inside is a deadline you can't miss... and how much is your MSP worth?
🔴 May Patch Tuesday is live… and this one is bigger than usual
Updates are dropping from Microsoft right now and this month’s Patch Tuesday is expected to be a record-breaker.
The reason: Project Glasswing. In an unprecedented move, Microsoft joined forces with 11 other major tech companies, including Apple, Amazon, and Cisco, to use AI to hunt for vulnerabilities across their own software before attackers find them.
The result is a significantly higher volume of CVEs than normal. Expect fixes across the entire Microsoft portfolio. Help Net Security
Also watch for fixes for RedSun and UnDefend — the two Microsoft Defender exploits we flagged in April that remained unpatched after Patch Tuesday last month. Both have been actively exploited and both are expected to be addressed today.
BleepingComputer will have the full breakdown on this live page as it lands: BleepingComputer
🟡 There's a Secure Boot deadline buried in today's update (you have 45 days)
This one is easy to miss in the noise of Patch Tuesday.
Today’s update includes a critical Secure Boot certificate rollout. The original Secure Boot certificates, issued in 2011, expire on June 26. That’s 45 days away. Devices that receive today’s update are covered. Devices that miss it have one more chance in June’s Patch Tuesday, after which there’s no comfortable window remaining. Microsoft
After June 26, unpatched devices enter what Microsoft describes as a “degraded security state”. They continue to function normally but can no longer receive future boot-level protections. Over time this leads to compatibility issues as newer OS versions, firmware, and Secure Boot-dependent software may fail to load.
Worth checking today that your patch management is picking this up across all client estates… especially any devices that have been offline or excluded from automatic updates.
🟢 If you've ever wondered what your MSP is worth…
MSP Channel Insights published a video yesterday featuring a panel discussion on financial visibility, profitability, and exit readiness in the MSP market. MSP Channel Insights
The timing is good. Private equity is still actively buying MSPs. Multiples remain strong for businesses with recurring revenue, clean financials, and documented processes.
The MSPs getting the best deals are the ones who started thinking about exit readiness two or three years before they were ready to sell, not six months before.
Enjoy Patch Tuesday! Hit reply and let us know if it’s something you look forward to or whether your heart sinks on this day once a month. We’ll be back in your inbox tomorrow morning.