Inactivity switch guide
A dead man's switch should start a recovery process—not release every secret
A digital dead man's switch uses missed check-ins as a signal that someone may be unable to act. For crypto inheritance, its safest role is usually notification and controlled delivery of encrypted recovery context, not broadcasting a private key.
PingVaults Editorial Team · Updated September 3, 2026
A safer design pattern
Use a clear check-in interval, multiple reminders, a grace period, more than one contact path, and a payload that remains encrypted. Give the owner an obvious way to reset the timer, and give recipients enough context to identify false alarms.
Define inactivity precisely
Missing one email is not proof of death or incapacity. Travel, spam filters, abandoned inboxes, and service outages all create false positives. A robust policy states the cadence, number of attempts, grace period, and escalation sequence.
Minimize what the switch can expose
Deliver a location, instructions, and decryption clues rather than a reusable signing key whenever possible. If the delivery layer is compromised, encryption and factor separation should still limit what an attacker gains.
Design for both false positives and false negatives
A false positive releases information too early; a false negative leaves heirs without help. Use redundant contact details, backup contacts, calendar reminders, and periodic drills to reduce both failure modes.
Keep legal authority outside the trigger
An automated email cannot determine inheritance rights. The recipient still needs to follow applicable estate documents, custody procedures, and local law before accessing or transferring assets.
Dead man's switch checklist
- 1Choose a realistic check-in cadence
- 2Send several reminders through independent channels
- 3Add a documented grace period
- 4Encrypt the delivered payload
- 5Maintain primary and backup contacts
- 6Test cancellation, reset, and delivery with harmless data
Dead man's switch questions
How long should the inactivity period be?
There is no universal answer. It should be longer than normal travel or communication gaps and should include repeated reminders plus a grace period.
Can a dead man's switch prove someone has died?
No. It only observes missed check-ins. Treat it as an escalation signal and recovery aid, not a legal or medical determination.
What should the switch send?
Prefer encrypted instructions, a vault location, and separated clues. Avoid sending a complete private key or seed phrase in plaintext.
$ start --encrypted
Set up encrypted inactivity delivery
PingVaults combines recurring check-ins with browser-encrypted instructions and a configurable emergency contact.