Yeah it's a tricky one isn't it? On one hand many of the best security researches are ex-state employees, and many of them go from that into the private sector. On the other hand it makes it sound like they are friendly with potential adversaries.
I mean... would you hire Kevin Mitnick's company? Lots of people do (apparently, considering they've been in business this long), but yet he's a former "criminal". It really is a tricky analysis. Who knows hackers better than a former hacker? But how can you trust a "former" hacker? Hmm...
[0] https://en.wikipedia.org/wiki/ToTok_(app)#Surveillance_tool_...
[1] https://www.reuters.com/investigates/special-report/usa-spyi...