In February of this year, security researchers at ETH Zürich notified us that they had found three security issues in the Briar app. Two of these issues were fixed in version 1.4.22 of Briar, which was released in February. The third issue was fixed in version 1.5.3, which is being released today. All users are encouraged to upgrade to version 1.5.3 of the app as soon as possible. We have not received any reports of these bugs being exploited in the wild, and the third issue is not exploitable.
