Stay safe in the physical world — keeping a low profile

The single most effective safety habit is also the least technical: don't advertise that you own Bitcoin. A well-known Bitcoiner put it plainly — the best thing you can do to lower your risk is not talk about Bitcoin, at least not while attached to your real name or face.

That is not about secrecy or shame. It is about not painting a target on yourself. In practice:

• No balance screenshots. Not ever, not anywhere public. A single screenshot can travel further than you think.
• No "just bought X coins" posts under your real name. Even small posts add up. Over time they paint a picture.
• No Bitcoin-branded gear in public. Skip the logo hats, the hardware-wallet keychains, the laptop stickers. They are a quiet announcement.
• Keep amounts vague, even with family and friends. You can love Bitcoin out loud. Just don't attach a number to yourself. "I own some" is safer than "I own a lot," which is far safer than a specific figure.

None of this means you have to stay silent. Talking about Bitcoin the idea — the technology, the freedom, the economics — is great. The line is simple: share the enthusiasm, not your holdings.

It helps to understand how anyone would even know to target you. It is rarely one big clue. It is small pieces that add up.

The first piece is often leaked KYC data. KYC stands for "Know Your Customer" — the ID, name, address, and phone number an exchange collects when you sign up. That data sometimes leaks. In 2020, a hardware-wallet company called Ledger had a breach that exposed the names, home addresses, and phone numbers of over 270,000 customers. That list still circulates today. A leak like that hands someone a ready-made roster of likely Bitcoin holders and where they live.

The second piece is public clues you leave yourself: posts under your real name, a talk you gave, a comment a friend made about "my buddy who's into Bitcoin." On their own, each is harmless. Combined with a leaked address, they turn a maybe into a yes.

You can't un-leak old data. But you can shrink your side of the equation:

• Use a separate email for any Bitcoin-related account, ideally one that isn't your full name.
• Keep your home address off things when you can. Some people ship hardware to a P.O. box or a work address instead of home.
• Keep your real-name self and your Bitcoin self apart. Don't link the two in public.

The goal isn't to vanish. It's to make sure no single leak, and no casual conversation, quietly puts your name and your holdings in the same place.

There's a well-known joke in security circles called the "$5 wrench attack." The idea: no one needs to crack your encryption if they can simply confront you and demand you hand over the coins. It sounds scary, so let's take the fear out of it and think clearly.

First, keep the odds in view. This is rare, and it clusters almost entirely around people who were identifiable as holders. Everything in the sections above is your real defense. Prevention through privacy beats any dramatic response.

Second, the best protection is not bravery — it's a setup where cooperating fully still can't hand over everything. If your coins are arranged so that no single place, and no single action of yours, can move all of them, then "I genuinely can't do that right now" is simply true. You're not bluffing. You're not resisting. You're telling the truth, and that is far safer than trying to be a hero.

You may also hear about a duress wallet or decoy wallet — a small, believable stash you can reveal to satisfy someone, while the bulk stays hidden and separate. These can be a useful extra layer, but they're not reliable on their own. Someone may not believe a decoy is everything. So treat a decoy as one thin layer on top of the real defenses: being hard to identify, and being genuinely unable to move it all at once.

Geographic distribution is a plain idea behind a fancy phrase: don't keep everything you'd need in one spot. If someone gets into your home — whether a burglar while you're out, or someone standing in front of you — no single location should hold enough to sweep your funds.

How this looks in practice depends on your setup, but the principle is the same: your backups and keys live in a few genuinely separate places. A safe at home, a bank safe-deposit box, a trusted family member in another city. "Separate" means truly separate — a fire, a break-in, or a search of one place shouldn't reach the others. Two safes in the same house count as one place.

This quietly solves several problems at once. A house fire can't destroy everything. A burglar can't find everything. And if you're ever pressured in person, you physically can't produce it all, because part of it isn't there.

One more everyday habit: don't carry your hardware wallet around unless you actually need it. It stays home, or wherever it lives, most of the time. There's no reason to have it in your bag on a normal day, and every reason not to have it on you if something goes wrong away from home.

It's easy to read a page like this and feel uneasy. Don't. Step back and see the shape of it.

For the large majority of people, physical attacks are a small, tail-end risk — the rare worst case, not the everyday one. And the habits that guard against it are the same low-effort ones that make your whole life a little more private: don't post your balance, don't wear the logo, keep amounts vague, spread your backups out, leave your device at home.

You don't need bodyguards or a bunker. You need to be unremarkable. Match your effort to what you actually hold — a modest stack needs modest habits. Do the simple things well, and you've handled the physical side of self-custody. Then enjoy the quiet confidence that comes with holding your own keys.