>>If a security-focused government police agency is so vulnerable
I think calling FBI "security-focused" is a bit too generous. They are essentially glorified police detectives, with greater authority and jurisdiction. I don't believe the average FBI agent is particularly competent, in terms of technical (i.e. computer) skill or knowledge.
The FBI literally performs the background checks for security clearances. Like any other organization it has less security focused divisions, but insofar as any organization is security focused, the FBI is.
I think calling FBI "security-focused" is a bit too generous. They are essentially glorified police detectives, with greater authority and jurisdiction. I don't believe the average FBI agent is particularly competent, in terms of technical (i.e. computer) skill or knowledge.