Messages are stored in cleartext locally

[fmast]

Is it possible to encrypt messages locally ?
~/.cabal-desktop/v1/90b9efc4c9f9296155c190395fb52fc25b3adff76710b7aed9f3e1c39cb5d355/0$ cat data
{"type":"channel/join","content":{"channel":"default"},"timestamp":1610675941256}{"type":"about","content":{"name":"hidden-shadow"},"timestamp":1610675941262}{"content":{"channel":"default","text":"this is a fred"},"type":"chat/text","timestamp":1610675985423}
Is it a configuration item?