With the recent board changes in Signal (Katherine Maher and other people highly associated with the government of the USA) it is reasonable to assume that it c

With the recent board changes in Signal (Katherine Maher and other people highly associated with the government of the USA) it is reasonable to assume that it compromised in some way. The UK probably recognizes this and wants to make it a little bit harder for US diplomats to evade interception. Meanwhile France and Germany will use Element Matrix.