A group of cybercriminals stole some $890,000 from the customers of an unnamed, large U.K. bank, according to researchers at security firm M86. Attackers last month distributed exploits via infected websites and malicious advertisements to compromise victims' browsers and install a new version of the data stealing-trojan Zeus onto their PCs. The botnet operators programmed the malware to wait for the bank balance of infected users to reach at least $1,000, after which they conducted fraudulent transactions that wired funds to the accounts of money mules. Researchers discovered 3,000 compromised accounts, including some belonging to businesses. — AM