Blog

We launched Killswitch as a zero-knowledge product. In 2026 we moved away from it — on purpose. Here's the honest reasoning, what changed, and exactly what we trade off.

Documents, notes, recordings, notebooks, and folders now live in one place: the Library. Our biggest release ever — a unified vault with a rich text editor, ⌘K search over your decrypted names, journal-style notebooks, folders that organize your deadman switch, a rebuilt dashboard, and a mobile-first redesign. Still encrypted, end to end — at rest and in transit.

If you died tomorrow, would your family know where the will is, how to reach the people who matter, or what you'd want at the end? The "If I'm Gone" journal puts it all in one place, sealed until the moment it's needed. Here's how to build one in Killswitch, plus a real example to copy.

our password manager holds the keys to your entire life: your bank, your email, your business, all of it. So what happens to it if you're gone? A break-glass kit is the one document that gets the person you trust into your accounts, without leaving the keys lying around. Here's how to build one in Killswitch, plus a real example to copy.

Most founders keep the whole business in their head — until the day they're not there. A handoff journal documents how the company actually runs (access, money, people, operations) so your team or family isn't locked out if you're suddenly gone. Here's how to build one in Killswitch, plus a real example to copy.

Killswitch now connects to Claude. Ask it to draft a note or organize a notebook for you — while everything you keep Sealed stays encrypted with a key that never leaves your device.

Google's BeyondCorp paper introduced zero trust to enterprise security in 2014. The same framework — identity over location, authentication as perimeter, least privilege, assume breach — ports directly to personal life and produces a better result than the ad-hoc alternative.

Bruce Schneier, Edward Snowden, and Cory Doctorow have spent careers writing about personal threat modeling against state surveillance and platform power. Their principles apply more cleanly to digital estate planning than most estate-planning advice does. A walk-through.

Engineering teams run tabletop exercises to rehearse disaster scenarios before they happen. The same practice applies cleanly to families and estate planning. Three scenarios, the gaps they'll surface, and how to facilitate the exercise so it actually surfaces them.

Microsoft's STRIDE framework was built for application security. It works just as well on personal OPSEC and estate planning — spoofing your identity, tampering with beneficiary designations, denial of service on your own life. A walk-through.