Wickr, a private, secure messaging company, has teamed up with Psiphon (previously), a spinout from Citizen Lab (previously) to allow its users to communicate even when they are behind national firewalls.

Repressive autocracies like Egypt, Oman, and the UAE ban Signal and other encrypted messaging apps, using national firewalls to try to block their traffic; Signal evades these blocks by using "domain fronting," in which the service's cloud provider shows up as the origin of its traffic, forcing countries to block Google or Amazon to get at a single service hiding behind them.