Hackers lock up thousands of Australian computers, demand ransom

[1] Australian computers are being hacked by use of malicious softwares that encrypts files and asking ransom in return.

[2] “Cryptolocker” and “CryptoWall” as dubbed, is infected to a computer after clicking a link in an email that purports to be from Australia Post or Telstra.

[3] A firm called “Decrypt Cryptolocker” was formed in order to help victims prevent these cases.

Source: http://www.theage.com.au/it-pro/security-it/hackers-lock-up-thousands-of-australian-computers-demand-ransom-20140917-10hyyh.html