A while back I performed a mini-audit on the Threema messaging app. You can read about Threema on my blog: https://serpentsec.1337.cx/threema
INDICATORS OF COMPROMISE (IOC)
InfoSec Community within the Fediverse. Newbies, experts, gurus - Everyone is Welcome! Instance is supposed to be fast and secure.
We have a Getting Started Guide here: https://ioc.wiki/mastodon
HAVE FUN and STAY SAFE!