Starting on Friday, May 12th , computers in countries around the world have fallen victim to the latest ransomware attack. As of Monday morning, it is estimated that more than 150 countries have infected systems, totaling over 200,000 computers. The ransomware is known as WannaCry (or WannaCrypt), and as you might expect, it encrypts your computer and holds your files hostage, requiring you to pay a ransom to get your files back. The spread of this ransomware was enabled by a vulnerability in Windows, particularly for those running older versions of Windows. The patch for this vulnerability was made available earlier this year for currently supported versions of Windows, but Microsoft has now made patches available for older, unsupported versions of Windows.