The U.S. Department of Homeland Security advised computer users to consider using alternatives to Microsoft Corp’s Internet Explorer browser until the company fixes a security flaw that hackers have used to launch attacks.
The United States Computer Emergence Readiness Team said in an advisory released on Monday morning that the vulnerability in versions 6 to 11 of Internet Explorer “could lead to the complete compromise of an affected system.”
Cybersecurity software maker FireEye said that a sophisticated group of hackers have been exploiting the bug in a campaign dubbed “Operation Clandestine Fox.”
“Microsoft should move fast,” he said. “This will snowball.”