It’s a new “infection” in computer systems around the world. This particular one is called the “Wanna Cry” (WannaCryptor) bug in which data is being encrypted by a hacker of hackers ...

A U.S. teenager unleashed a computer worm over the weekend, infecting many user accounts on Twitter.com, which has become a target for mischief-makers as its popularity grows.

Previous versions of the worm contained instructions to scour a list of about 250 Internet domain names which could potentially be used to send instructions to infected computers.