LastSignal Is a New Open-Source Dead Man’s Switch You Can Self-Host

We all have sensitive information we guard closely. Details about our digital wallets, passwords for the services we use every day, or strictly confidential information. These are things we expect to remain private and would never want to be seen by the wrong people.

But have you ever stopped to consider what would happen if, for reasons beyond your control, you could no longer access your digital tools and online accounts? In that situation, you’d likely want someone you trust to step in and manage them on your behalf. That’s exactly the problem the following app is designed to solve.

A new open-source tool called LastSignal has emerged to let users run their own encrypted dead man’s switch on a self-hosted server. The software is designed for scenarios where messages should only be delivered if the sender becomes unreachable and stops responding to scheduled check-ins.