TheHill reports that the city of Pensacola, Florida, has disconnected most of its networks in response to a cyberattack that hit over the weekend. The attack began early Saturday, the Pensacola News Journal says, hours after a Saudi military pilot undergoing training at Pensacola Naval Air Station murdered three US Sailors and was subsequently shot by local police. The timing of the cyberattack raised speculation that it might be connected to the shooting (which, according to the New York Times, authorities are investigating as a possible terrorist incident), but so far no such links have been found. The motivation behind the cyberattack remains unclear: the city hasn't said, for example, whether it's received ransom demands.
Emsisoft warns that the criminal-provided Ryuk ransomware decryptors may damage larger files.
The US Justice Department has released its Inspector General's report on the FBI's 2016 Crossfire Hurricane investigation into allegations of Russian influence in President Trump's campaign. As the Washington Post summarizes the report, the IG found that the FBI had adequate grounds to open an investigation, but that the investigation itself was marred by "serious failures." Those failures are particularly evident, NBC News says, in the way the FBI obtained and used FISA warrants, and in its handling and assessment of "confidential human sources." The inquiry seems to have been handled carelessly, and with the sort of target fixation to which investigative agencies are frequently tempted. The FBI immediately accepted the report's recommendations and is moving to strengthen applicable procedures and oversight mechanisms.