05/20/2026
🚨 A vengeful security researcher just dropped his THIRD wave of Microsoft zero-day exploits in six weeks - and the story is a wake-up call for every small business owner.
The researcher, who goes by "Chaotic Eclipse," is rumored to be a former Microsoft employee. His own words: "someone violated our agreement and left me homeless with nothing... they stabbed me in the back."
His response? Public exploit code for unpatched Windows vulnerabilities, timed deliberately to drop right after each Patch Tuesday. As of last Wednesday (May 13), he has released:
🔴 RedSun (April 2) - Defender exploit. Already being used in real-world attacks per Huntress.
🔴 UnDefend (April 2) - Defender denial-of-service. Still unpatched.
🔴 BlueHammer (April 15) - CVE-2026-33825. Microsoft patched it AFTER the public exploit circulated.
🔴 YellowKey (May 13) - A BitLocker encryption BYPASS. Plug in a USB drive, follow some steps, and the encrypted Windows 11 drive opens. Confirmed working by independent researchers.
🔴 GreenPlasma (May 13) - SYSTEM privilege escalation on Windows.
And he has promised "a big surprise" for next month's Patch Tuesday.
Why is this story so important for SMALL business owners?
Because this is exactly what an insider threat looks like - with the volume turned up.
Most small business owners picture cybersecurity attacks coming from foreign hackers. They almost never picture:
❌ The IT contractor who managed your network for 5 years and is no longer happy with how things ended
❌ The bookkeeper who had full admin access to your accounting and still has it months after leaving
❌ The employee who left on bad terms and whose Microsoft 365 account is still active because nobody deactivated it
❌ The former business partner who has the master password to your hosting account, your domain registrar, and your shared cloud drive
❌ The "free" web developer who set up your site years ago and is still listed as the technical contact
❌ The currently-unhappy employee with legitimate access who is laying groundwork before they leave
When was the last time you actually audited who has access to what in your business?
Some uncomfortable questions for small business owners in Raleigh, Cary, Selma, and across the Triangle:
🔹 If a former contractor wanted to log into your business systems tomorrow - could they?
🔹 If an unhappy employee wanted to copy your customer list before quitting - would anyone notice?
🔹 If somebody who used to have admin rights started downloading data at 2am Saturday - would you find out by Monday or by next quarter?
For most small businesses, the honest answer to all three is "I have no idea."
That is exactly the gap we close.
We just published a full breakdown for small business owners on our blog (link in comments). It walks through the Chaotic Eclipse story, the specific kinds of insider risk every small business has, the offboarding checklist you should have but probably don't, and what active monitoring actually catches.
If you have ever ended a relationship with an employee, a contractor, or a vendor - and never did a formal access review afterward - that conversation is overdue. We do this work every day for small businesses across the Triangle.
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A disgruntled researcher just dropped his third wave of Microsoft zero-days. Here is the insider threat lesson every small business owner needs to hear.