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Threat model

A scan has to ask public services about an address. This page says exactly who learns what, and where Nymra’s protection ends.

  • Your seed phrase or private key. Nymra never asks for them, and the Terminal empties the scan field at once if one is pasted or typed into it.
  • Your result. The score and the findings are computed in your browser and stay there.
  • Who scanned what. Nymra keeps no list of scanned addresses and no account, cookie or profile.
  • Anything beyond the public chain. Nymra has no private data, leaked databases or off-chain tracking. It only reads what anyone can read.
WhoWhat they can seeWhen
EveryoneEvery transaction of every address, foreverAlways: the chain is public
The public block explorersYour IP address and the addresses the scan asks about: yours, and a few related wallets such as its funderEvery scan
The public RPC nodesYour IP address and the addressEvery scan, one quick check per chain
Blockscout’s ENS service and a public Ethereum nodeYour IP address, the address and the ENS name you typedEvery scan
Nymra’s relayThe request, so the address, and your IP address as any server does to answer. It keeps no logWhen an explorer refuses your browser, and for BNB Smart Chain and Linea
The services behind the relayThe relay’s request, not your IP addressThe same moments
The website’s hostThat someone loaded the page, from your IP address. Not the address you scan: a share link keeps it after the #, which browsers do not sendEvery visit
Your wallet appThat the site asked for your addressOnly if you press Connect wallet
Your network or internet providerWhich hosts you contacted. Not the address inside the encrypted requestEvery scan
Browser extensions you allowed on the pageEverything on the page, the address you typed includedEvery visit
Anyone you share a result withThe image and the link you share. The address only if you ticked the box to include itWhen you share
  • The public chain itself. Nymra shows what is already public. It does not hide anything, and a low score cannot be undone.
  • Logs kept by the services you ask. An explorer, a node or the ENS service can keep your IP address next to the address you scanned. Nymra cannot see or delete their logs. Scanning your own wallet from your own connection tells them which wallet interests you; use a VPN if that matters to you.
  • Trusting the relay. The relay’s code is open, in the privacy-scan repository, but nobody outside Nymra can inspect the server it runs on. When the relay is used, you trust that it keeps no log.
  • A compromised device or a malicious browser extension. Either can read anything you do in the browser.
  • Look-alike sites and impersonators. Check the address bar, and read Safety.
  • Address poisoning. A scan lists look-alike addresses it finds in your history as warnings, but it cannot stop a wrong transfer. Check every character of an address before you send.

See Privacy and data for how the relay works, and Verify it yourself to check the hosts with your own browser.