Following what it called a "state-sponsored attack" that it has referred to the FBI, security company FireEye disclosed Tuesday that some of its valuable tools for testing the defense of its customers have been stolen.
In a filing with the SEC, FireEye said "we have found that the attacker targeted and accessed certain Red Team assessment tools that we use to test our customers' security." "Red Teams" are security experts who target the defenses of their customers in hopes of finding problems with their security before criminals do.
Those tools, considered among the best in the security industry, are likely to wind up on the internet where they can be used against anyone. Stock in FireEye plunged 7% in after-hours trading.