Digital Signature Inventory Before you decide what to hide, you have to know what you emit. Work the who, what, where and when — wallet, car, routines, accounts, biometrics — and the shape of your attribution stops being a guess.
Computer "10" List Ten things any computer user should be able to do without looking them up. Nothing exotic on the list — which is the point, because the gaps in it are where most compromises start.
Social Media Hardening The Defense Department publishes step-by-step social media lockdown guides and gives them away for free. The screenshots have aged; the logic has not. Pick one network, one ecosystem, and do the work.
What to protect? You cannot defend a list you have never written down. Driver's license, bank, inbox, location history — each one says something specific about you, and the first job is knowing exactly what.