$300 or your files are toast: Dr Pound takes a look at the latest ransomware to be doing the rounds. How Wana Decrypt0r encrypts files: https://www.youtube.com/watch?v=pLluFxHrc30 Microsoft Blog: http://bit.ly/Computerphile-Wana_MS Professor Ross Anderson's blog: http://bit.ly/Computerphile-Wana_Ross MalwareTech's blog: http://bit.ly/Computerphile-Wana_Mal End to End Encryption: https://www.youtube.com/watch?v=jkV1KEJGKRA Internet of Things Problems: https://www.youtube.com/watch?v=PLiE0Nr8VOE http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com/