June 5, Softpedia – (International) Zeus banking trojan variant goes completely undetected. A security researcher from PricewaterhouseCoopers discovered that a new variant of the Zeus banking trojan delivered via the Neutrino exploit kit (EK) is completely undetectable by most antivirus products, and that encoded data in the EK indicates that the trojan is part of a new malicious campaign. Source
June 4, Threatpost – (International) Adware-laden Skype botnet disrupted. Security researchers from PhishMe and Amazon Web Services dismantled a Microsoft Skype-driven botnet that circulated adware via calls from attackers that prompted users to install infected executable files. Source
June 4, New York Times – (National) Hacking linked to China exposes millions of U.S. workers. U.S. officials announced June 4 that at least four million current and former government employees had been affected after data from the U.S. Office of Personnel Management, which handles government security clearances and Federal employee records, had been compromised. The breach was first detected in April and appeared to target Social Security numbers and other personal identifying information. Source