Blackmailing Computer Virus

Ransomware is a malicious virus that locks the user out of their computer and demands a fee to return their files.

17:49 15 December 2015

Ransonware is the fastest growing form of computer malware. A report published by the Australian government confirmed that in 2015 alone, 72per cent of businesses surveyed confirmed that they experienced ransonware incidents. It is a huge increase from just 17per cent in 2013.

 

Just like any other computer virurs, ransomware is sent through a phishing mail or a fake software update. If the recipient clicks a link or opens an attachment, the virus will be able to encrypt the user's files.

 

The virus then locks down the computer and demands a fee, which is generally one or two bitcoins or about £330.

 

Gert-Jan Schenk, vice-president at internet security company Lookout, said: "For the most part, we've seen ransomware delivered through drive-by downloads - it pretends to be a popular app, increasing the chances that you'll click on it."

 

"To avoid these threats, users should be very careful about what apps they install, and where they come from - read the reviews on Google Play, and avoid side-loading from untrusted sources."

 

Cybersecurity expert Prof Alan Woodward says paying leaves you vulnerable to further cybercrime.

 

"As soon as you pay up, you get on a suckers' list and you'll probably get contacted again," he says.

 

"It's low-hanging fruit for the criminals."