Couple thoughts. First, it wasn't Signal that was the problem, it was this dude falling victim to a scam and blaming the app for his own incompetence. Second, there's a graf where they talk about who uses Signal but left out druggies and this pothead erasure. That's what I originally dled it for.
The Nebraska Republican said he was contacted by the FBI and the House’s IT office after Kremlin-linked hackers compromised his Signal messaging account.