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Privacy
SummaryArchived

Archived

Protocols that shut down, were drained or were replaced by a newer version.

How to read the privacy rosette

Each slice is one adversary testing the protocol's privacy promise. Read the methodology

  • Private: The promise holds for a careful user with the app's own settings.
  • At risk: The promise holds only with significant extra work, like a custom build or your own servers.
  • Exposed: The promise breaks, and no reasonable effort prevents that.

Link privacy
2

Hides which deposit became which withdrawal. Both stay public.

Name
Setup
1
zk.money v5 logo
zk.money v5
zk.money v5
Shielded ledger
Privacy assessment
  • Public observer: Private. Private payments publish encrypted notes.
  • Chain analyst: At risk. In practice the anonymity set is zk.money's users on Aztec, although the L2 contract is permissionless.
  • Network observer: At risk. Alchemy, called under Aztec Labs' key, sees an account's deposit addresses and withdrawals in one session unless the user sets their own Ethereum node.
  • Privileged insider: At risk. An AWS Nitro enclave reads payments, withdrawals and deposit claims inside.
  • Future adversary: Exposed. Whoever breaks elliptic-curve cryptography can decrypt historical notes and payment events published to Ethereum.
$15.93 K53.5%
2
Payy logo
Payy
Payy
Shielded ledger
Privacy assessment
  • Public observer: Exposed. Every transaction names the notes it spends and creates, so which notes fund which is public.
  • Chain analyst: Exposed. Along a path without splits or merges, the deposit and withdrawal amounts fix every amount in between.
  • Network observer: Exposed. The payment-link website hands each link's redeem secret to PostHog analytics, which records the full page URL.
  • Privileged insider: Exposed. One company runs the only validator and prover, the node, the note registry, the deposit relayer and the KYC checks.
  • Future adversary: Exposed. Whoever breaks elliptic-curve cryptography learns at least what the public observer sees: which notes fund which.
$710.360.00%
No data