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Real world

Physical safety and operational security

The attack that does not need any code: somebody who knows you hold crypto.

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Updated 2026-08-305 min read
The short answer

The attack that does not need any code: somebody who knows you hold crypto. Self custody removes the intermediary, which also removes the person who could freeze a transfer or reverse it. That makes a holder personally worth targeting. These attacks are rare relative to the online kind, but they are the ones where discretion is the entire defense.

What it is

Self custody removes the intermediary, which also removes the person who could freeze a transfer or reverse it. That makes a holder personally worth targeting. These attacks are rare relative to the online kind, but they are the ones where discretion is the entire defense.

How it plays out

  1. You are identified as a holder

    Usually because you said so, in public, under a name that can be tied to a place.

  2. The details get filled in

    From social media, from a leaked customer list, from a conference badge photo.

  3. The approach is direct

    Coercion in person, or a burglary aimed specifically at finding a seed phrase or a hardware wallet.

What gives it away

  • Being asked, in any social setting, how much crypto you hold.
  • Unusual interest in your travel, your address or your household.
  • A data breach at a hardware wallet or exchange that leaked customer addresses.

How to not be caught by it

  • Do not discuss holdings. Not amounts, not gains, not under a handle linked to your real name.
  • Keep the seed phrase somewhere that is not obviously a seed phrase, and not at your desk.
  • Consider splitting a backup across locations so no single place is enough.
  • Use a passphrase on a hardware wallet, so the device alone does not open the real balance.
  • Ship hardware wallets to a locker or a workplace rather than your home address.
  • Have a small decoy balance that can be handed over, and never mention the rest.
The hard part is not technical
None of these require technical skill to avoid. They require doing the boring check at the exact moment you feel most rushed, which is the whole difficulty.

If it already happened

  • Your safety is worth more than any balance. Hand it over.
  • Move remaining funds as soon as you are safe, assuming everything visible is compromised.
  • Report it to the police. These cases are investigated and patterns get connected.
Recovery scams
Anybody who contacts you offering to recover lost crypto for a fee is running the second scam on the same victim. There is no recovery service that can reverse a blockchain transaction, because nobody can. Report it through official channels and ignore everyone else.

Common questions

How common is physical safety and operational security?

Common enough that it has a name and a playbook. The specific numbers move constantly, so rather than quote a figure that will be wrong next quarter: assume you will meet this one, and set your wallet up so meeting it is survivable.

Can the money be recovered?

Once a blockchain transaction confirms, no. What reporting can occasionally do is get funds frozen at the exchange where a thief tries to cash out, which is why reporting quickly is worth doing even when it feels pointless.

Does a hardware wallet stop this?

It stops anything that needs your keys, because the keys never leave the device. It does not stop you approving a malicious transaction on the device itself, so read what the screen says before you press confirm.

Where to go next

All attacksThe full list, side by side.Security checklistDo the fixes in order.Self custodyHolding your own keys properly.

Check your setup before you need to

An hour on a screen share, going through your wallets, your approvals, your backups and your recovery plan. You click everything and we never ask for keys.

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