A hacker posted details of a compromised Mandiant system on Sunday night. The leak appears to center on a single analyst, and a single set of systems used by Adi Peretz. Peretz is just the first analyst to be targeted, signaling to others that they need to take care of their personal security and use caution while working. Mandiant says they’re aware of Sunday’s post and are investigating. FireEye says nothing was hacked, and that nothing was compromised, and the only thing they’ve discovered are a number of failed access attempts in logs.”]