Docs / Privacy & security

Risks

Lethe is new software holding real money. Read this before you put in more than you can afford to lose.

Smart contract risk

A bug in the pool contract, the verifier or the circuit could lose funds. The pool has a balance cap that limits how much could be lost. A deposit that would take the pool over the cap fails.

Trusted setup

The proving key comes from a single-party setup. In theory, whoever ran it could forge proofs. A multi-party ceremony would remove that trust, and is planned.

Key loss and theft

Your balance is controlled by a signature from your wallet. Lose the wallet and the balance is gone. Sign the Lethe message on a fake site and someone else can spend it.

Relayer

If the relayer goes down, you can't send privately through it, but your funds stay safe. Anyone can run a relayer, and you can always call the contract yourself, though then your wallet appears on the send.

Privacy limits

A small pool, matching amounts or quick sends can make you guessable. Lethe can't stop you linking yourself. See Privacy tips.

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