Learn from others' mistakes by reviewing last year's worst ransomware attacks with Mr. Backup and Prasanna Malaiyandi. Listen to them review the 10 worst attacks from 2021, then discuss lessons learned: Colonial Pipeline, BrennTag, Acer, JBS, Quanta, NBA,AXA, CNA, CD Projekt, and Kaseya. Then they discuss the trends they see, and the lessons we can all learn from these horrible attacks.