Brandon-Coll

That is and can be one way to establish trust, but most users won't know the people behind the software. do you think trust can be earned through things like security architecture, independent validation, audits, and collecting as little user data as possible.

so if the closed source platforms are independently audited by DEKRA and verified by NIST CAVP cryptography, still hard to trust?

Fair, but open source also automatically does not mean more trustworthy. What matters is what can actually be independently verified about the software you are running. what is you take on this? also I believe the potent security features must be there in messengers which name them secure and private

well put. I'd add third-party audits to thelist. independent security audits together create a much stronger trust model but regular and different for respective analysis

so if an app is not open-source, it's credibility as secure, private or encrypted becomes questionable? and if an app has code open, that's mean it is absolutely trustworthy? what is your take on this?