Photos. Documents. Email. Subscriptions. The small things that make a life retrievable. Threshold Vault lets you leave a way in for the people who matter, without leaving the door open for anyone else.
A grieving family stands in front of a phone they cannot unlock, a laptop they cannot open, a vault of memories with no key. The will mentions the property and the cars. It does not mention the password.
Either too findable to be safe, or too well-hidden to be found.
Asks you to trust one person, completely, for the rest of your life.
Lawyers handle the deed. Few think to handle the photo library.
Almost everything you would want to leave behind, and everything you would want the right people to be able to reach.
Two decades of family photos behind a single cloud password. The one no one wrote down because everyone assumed someone else had.
Tax returns, contracts, the boring paperwork that the estate executor needs and cannot reach without a password that died with you.
The thread that confirms the policy. The receipt for the storage unit. The conversation that explains where everything is. All locked.
Recurring charges to accounts no one can cancel. Bills to addresses no one can change. Inheritances of small monthly drains.
The codes that prove you are you. Held on a single device that died with you, leaving everything else unreachable in a slow chain.
A wallet that may be worth nothing. A wallet that may be worth a lot. Either way, a private key your family will never see.
The master password. The recovery codes. The instructions for the photo cloud. The note that says start here. Anything you can put in plain text, you can put in this bundle.
Spouse, adult child, executor, lawyer. Three of four together can reconstruct. Any one of them alone cannot. A single envelope hands no one your accounts. Three together do.
The threshold convenes when the day comes. They follow the protocol, which is in plain language and assumes nothing about technical skill. The accounts open. The estate is whole.
A password that dies with you is, eventually, a memory no one can reach.
Two layers, both open, both inspectable. The same primitives that protect banks and classified material, applied to the small set of secrets a family needs.
AES-256-GCM, applied in your browser. The same authenticated cipher used to protect classified material at the highest civilian level. The ciphertext alone is meaningless.
Shamir's Secret Sharing from a 1979 paper. Each share is a point on a polynomial. Any K reconstruct it. Fewer than K reveal nothing about it at all.
The roles a family typically already has, set out as a small constellation. Any three together reach the threshold. No one alone can.
Try the cryptography on a throwaway value. No signup. When you are ready, the plans are one step away.