As this is FOSS, I don't see why you need the security review (by who, with what qualifications?). Any users can look at the source code and arrange their own reviews as they think necessary.

Getting an external review/audit done is a common courtesy of privacy-conscious projects. You're totally free to do your own audit, if you write a report and disclose responsibly, I'll pay you $100 or more in a cryptocurrency of your choice.