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Passkeys and hardware keys stop phishing for the living, but they often die with the device. A single-phone passkey, iCloud Keychain (excluded from Apple Legacy Contact), or one YubiKey can leave a family with a lock and no spare. Build a survivable second path: synced vault access, two hardware keys, recovery codes, and a note in your delivery.

A switch is only as good as the people who can still be reached when it fires. Killswitch beneficiary verification checks contact info before delivery depends on it: silent checks for bad emails and phones, one-click Verify for recipients, and optional quarterly reachability. Problems show as badges and switch health warnings while you can still fix them.

AI agents can make a solo founder look like a ten-person team, but they do not fix the bus factor. Agents can draft, schedule, support, and ship code. They cannot inherit logins, open the registrar, or explain which AWS account is production. A short founder handoff runbook, plus a way for that package to leave your devices if you stop checking in, is what continuity actually requires.

The person named in your will cannot log into Gmail by showing a death certificate. Here is why the court job and the login job are different, and how to name both without creating a fight.

Someone you love set a switch. The email just landed. Here is the first 72 hours: what to open, what not to touch, and what can wait.

A setting inside Apple or Google can outrank your will. Here's the actual hierarchy, the Keychain hole, and how to make the settings and the documents say the same names.

Open-when letters only work if they arrive. How to write letters for an 18th birthday, a wedding day, or a hard season, and make sure they're actually delivered.

Estate plans decay from the day you make them. Here's a catalog of what silently breaks, plus a quarterly and annual maintenance schedule to keep yours alive.

A legacy journal is written for someone, not just about yourself. Here's how to start one, keep it going, and make sure your family actually receives it.

A death binder is one place for the documents, passwords, and wishes your family needs if you die or are incapacitated. Paper binders get lost, go stale, and cannot deliver themselves. Digitize the binder, keep it current, and attach it to a deadman switch so delivery happens when check-ins stop. Start free at killswitch.app/register.