Security’s been in the spotlight ever since Edward Snowden’s revelations about the NSA’s extensive spying program, but by every measure, this week was a doozy. There were no fewer than four—count them, four—major, critical security issues revealed over the past few days. Any one would’ve been a major deal by itself. Together, it’s enough to make you want to curl up in a ball in the corner.

Got you tinfoil hat ready? You’re going to need it. Let’s start with the security disaster that popped up first: Utterly unstoppable malware that can’t be stopped by anything short of physically destroying your hard drive.