The UK has a "two week period" to protect itself from a major computer virus that could give hackers access to sensitive information - costing the country millions of pounds, the National Crime Agency has said.
A Russian man charged by the US authorities with running a hacking gang behind the new powerful malware GameOver Zeus has admitted to writing the software in online forums, FBI documents revealed.
Evgeniy Bogachev told his associates that he had written the credential-stealing software Zeus while chatting to them online, FBI said.
Computer users are constantly being told to change passwords and update software due to the latest "Trojan" or "Bot" - but what are they?
The malware, called GOZeuS is hiding within email attachments, and once downloaded will enable hackers to mine infected computers.