Thank you — your vote has been counted.

So question for you… What caused one of the most expensive cyberattacks in history to spread across the world in 2017?

  • A sophisticated AI hacking system 101 votes (21.9%)
  • A compromised software update 180 votes (39.0%)
  • A stolen password from a bank employee 118 votes (25.5%)
  • A flaw in Bitcoin's security 63 votes (13.6%)

Total votes: 462

Correct answer: B) A compromised software update

In 2017, the NotPetya malware spread through a compromised update to Ukrainian accounting software. It went on to disrupt multinational businesses, including shipping giant Maersk, causing billions of dollars in damage worldwide.