Migrate to quantum resistant algorithms
Quantum computing breaking common cryptography algorithms is a future problem that will affect all data that is stolen/collected now and that contains sensitive information we may NEVER want to share
I think it's already been implemented years ago. Correct me if I'm wrong though but I think the CEO confirmed that in this : https://www.youtube.com/watch?v=Dp7ght2fMR4&t=4394s
Transfering data we may NEVER want to share by email looks like a funny option, IMHO.