You're assuming it takes considerable skill to fuzz an algorithm or look for back doors and easter eggs? To answer your question, I don't know if Wire's been audited by paid researchers. I personally prefer a customer-exposed product whose each commit you can look up rather than the remote promise of security in a locked and hidden program.

> You're assuming it takes considerable skill to fuzz an algorithm or look for back doors and easter eggs?

This is usually a good assumption.

Why can't it be both?

Bitwarden is open-source (both the server and clients) AND has been independently audited for a security review.

It is not impossible to create code which looks like it does one thing while simultaneously doing ya-mother.

http://underhanded-c.org/