Cryptolocker ransomware has 'infected about 250,000 PCs'

A virulent form of ransomware has now infected about quarter of a million Windows computers, according to a report by security researchers.

Cryptolocker scrambles users' data and then demands a fee to unencrypt it alongside a countdown clock.

Dell Secureworks said that the US and UK had been worst affected.

It added that the cyber-criminals responsible were now targeting home internet users after initially focusing on professionals.

The firm has provided a list of net domains that it suspects have been used to spread the code, but warned that more are being generated every day.

Read BBC Article