Eh, even if we use encryption it'll still be a problem in a couple decades thanks to quantum computers
I'll get back to you (possibly).
Capture is performed and encrypted data is stored, waiting for quantum computers to be available and cheap to then break in the future what we exchanged securely today. It counts on having the half life of data greater than the average time for quantum computers to arrive.
Post quantum cryptography algorithms exist (PQC) and some open source implementations are there. Even for SSH. and NIST has an active crypto challenge on that.