An alternative very secure recommended messenger is Cwtch. It’s written about in this forum Cwtch messaging Cwtch ranks 3rd in this rating (after Simplex Chat and Briar) https://privacyspreadsheet.com/messaging-apps. But Briar does not solve the problem of Tor over Tor, which has been an issue for many years Briar Desktop in Whonix - #21 by nyxnor The creator of Simplex Chat also highlighted Cwtch for its security at last year’s Monero conference, and said that the Cwtch team helped resolve some issues in Simplex.