short, practical notes about not getting phished. no fear mongering, just the checklist.
A stolen password no longer opens an account protected by PGP two-factor login. Here is how challenge-response authentication works, where it fails, and what it actually buys you.
A beginner guide to crypto privacy: how Bitcoin's transparent UTXO model differs from Monero ring signatures and stealth addresses, why markets switched to XMR.
Change outputs quietly link your Bitcoin addresses into a single cluster. How the common-input heuristic works, and the de-anonymizations it made possible.
Bitcoin looks anonymous but rarely is. We explain how analysts cluster addresses, why KYC exchanges are the choke point, and what mixing really buys you.
From Blender.io to Tornado Cash to Sinbad, OFAC's war on crypto mixers tested a novel idea: that code itself can be sanctioned. Here is how it unfolded.
Arrests, server seizures and regulatory fear ended one-click CoinJoin in under six weeks. Here is how investigators took down Samourai, why Wasabi folded, and what fills the gap.
Most crypto losses trace back to one mistake: keeping every satoshi in a single wallet. A practical checklist for splitting spending, savings and burn wallets.
Fake admins, spoofed police letters and forged seizure banners now drain more wallets than most hacks. Here are the documented campaigns and how to verify any official contact.
Scammers posing as market staff and tool support run a polished ticket-based con. Here is the playbook they follow and the verification steps that actually stop them.
A text says your parcel is stuck. The link looks like the postal service. Here is how fake tracking pages harvest cards and addresses, and how to verify safely.
Hydra's courier dead-drop system moved secrecy into city parks and stairwells. Its story is a case study in why too much operational security can be as dangerous as too little.
Most buyers are not caught by elite hacking. They are caught by reused usernames, linked wallets, and unencrypted phones. Here is the boring baseline that decides real outcomes.