A ransomware attack on one software vendor exposed 823,000 people’s Social Security numbers and bank account data across 80 community banks — and those banks didn’t find out for 74 days. That’s just one of three stories on today’s Security Squawk that show exactly how the vendor trust chain is failing businesses right now. Bryan, Randy, and Reginald break down: a brand-new extortion crew called UNC6783 that’s been hitting “several dozen” high-value corporations — including an alleged Adobe breach of 13 million support tickets — by breaking into their outsourced call centers and help desks instead of the companies themselves. Then Microsoft’s new research on the Medusa ransomware group (tracked as Storm-1175), which is exploiting zero-day vulnerabilities before patches even exist and can go from initial access to full ransomware deployment in under 24 hours. And finally, the full Marquis Software story: a fintech vendor breach that cascaded through 80 community banks, led to a ransom payment, and ended with Marquis suing their own firewall vendor SonicWall for gross negligence while defending 36+ consumer class action lawsuits. If you trust vendors with your customer data — and you do — this episode is about what happens when that trust gets broken.


