Save the Session App and Integrate it into the Proton Suite
Session announced that they will shut down if they cannot secure funding by July. This could be a great opportunity for Proton to save a dying Swiss technology company from extinction while also integrating it into their own suite.
Session is the most secure instant messaging app available to date. It's leagues better and more secure than Signal in every regard, however, they don't have enough funding and have publicly announced that they will be shutting down in July if they cannot secure enough money to keep operating. Session outshines Signal in that it uses no-knowledge encryption, but routes all messages through a tor circuit.
Proton should acquire them. Aside from Threema, which is paid, Switzerland and Europe don't have as popular secure instant messaging apps like the United States (which aren't as secure as they claim to be). Now is an opportunity to help change that and compete with WhatsApp and Signal.
Please consider this Proton team!