Well,I am quite suspicious just about signal as company.And have some reasons for that.
- First. https://www.blacklistednews.com/article/79127/how-cia-created-signal-messenger.html
- Second this is quite strange bug which was sending random images from the gallery to the user's contacts https://github.com/signalapp/Signal-Android/issues/10247
- Third
they are betraying idea to free/open source,quoting
To keep Signal a free global communication service without spam, we must depart from our totally-open posture and develop one piece of the server in private: a system for detecting and disrupting spam campaignshttps://signal.org/blog/keeping-spam-off-signal/ - Fourth Messenger Signal reported that it leaked phone numbers and confirmation codes of 1.9 thousand users. This happened due to the hacking of the Twilio database, which checks numbers. https://support.signal.org/hc/en-us/articles/4850133017242
- Fifth From new president of Signal was required to remove the registration by phone number by users.But nothing happened https://community.signalusers.org/t/usernames-in-signal/9157/622?page=29 under reasons they are fighting with spam--