A computer virus called Wannacrypt, or WannaCry, infected thousands of computers around the globe on Friday. It’s a piece of self-replicating ransomware, which makes users pay money to decrypt their files. If they don’t pay up, the files will be deleted within a week.

The developers of the MP3, Fraunhofer IIS, ended its licensing program for the audio format after two decades (it was invented in 1993). So basically software makers who have programs that make MP3s don’t have to pay a license fee to use the format