Microsoft president Brad Smith says the attacks were partly the fault of companies that don't patch their systems. Analysts agree.
The scenes from around the world were like a bad movie: Amateurish ransom notes, international chaos, and "absolute carnage" in some hospitals that were particularly hard hit.
First reported only two days earlier, the company corrected the flaw in a short time to block the vulnerability from hackers.
As security threats have expanded, the enterprise IT security mindset has not kept up, according to a new CompTIA study. That must change.