http://nguipxnkrp3qrzrlduhsatpcpwehnblzmlkc5ifiumxq4z5jlh4lwvid.onion/os_archive/os_OPSEC_357.html
Anything to do with planning, inventory or income sources ( what books you have in your personal library, how many "things you own", un-booked travel plans etc...), part time revenue etc, stock picking and purchasing plans, business plans, business ideas etc. Do all of that on an airgap. Mainly I'm thinking of personal spreadsheets, and personal text documents, digital photography and personal digital collections (music, pictures, videos,...