Hackers are targeting virtual currency Bitcoin, penetrating computers and swiping their digital wallets, according to computer security firm Symantec.
"We have seen a recent Trojan in the wild targeting Bitcoin wallets" in computers running various versions of Windows, Doherty said.
"It has one motive: to locate your Bitcoin wallet.dat file and email it to the attacker," Doherty said. "This is not surprising considering the potential values in a Bitcoin wallet."
Doherty said Bitcoin users should consider encrypting their wallet files. "If you use Bitcoins, you have the option to encrypt your wallet and we recommend that you choose a strong password for this in the event that an attacker is attempting to brute-force your wallet open," he said.