Me and a friend were having coffee and were discussing secrets something like 10 years ago. The conclusion of our conversation was "Everything always comes out"

Me and a friend were having coffee and were discussing secrets something like 10 years ago. The conclusion of our conversation was "Everything always comes out" (translated from Swedish [context was some gossip that eventually leaked about our common friend]) which boils down to that the only way you can really ensure something stays secret forever, is by only having it in your mind and not sharing it. As soon as you share it _anywhere_, there is a risk of it leaking somewhere. The lesson I carry is that the more secret it something is, the closer to my brain it is. Top-secret = only in my head, little bit secret = encrypted on my harddrive, little less secret = encrypted in the cloud, not secret at all = just dumped in a Google Drive account