Recently we completed a security audit of Thunderbird Send, our upcoming end-to-end encrypted large file sharing service, with the help of the @ostifofficial and 7ASecurity. Read our summary of the report's findings, and learn how we've acted on these recommendations to be more secure and worthy of the trust our user community places in us.

#Thunderbird #OpenSource #InfoSec

blog.thunderbird.net/2025/12/t…

Thunderbird Send Security Audit with OSTIF and 7ASecurity - The Thunderbird Blog

As we get ready for the Thunderbird Pro launch, we want every service we offer to be secure and worthy of the trust our community places in us.

^{Natalie Ivanova (The Thunderbird Blog)}