LevelBlue announced Tuesday it has signed a definitive agreement to acquire Cybereason, a Boston-based cybersecurity firm specializing in extended detection and response platforms and digital forensics. Dallas-based LevelBlue, a managed security services provider formerly known as AT&T Cybersecurity, will fold Cyberreason’s extended detection and response (XDR) platform, threat intelligence team, and digital forensics and incident response (DFIR) capabilities into its managed detection and respo...