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Since lnurl-auth is in infancy, not many services are using up for a new service bitcoin authentication yet but as the you need to check your email and click a link as a 2nd factor of authentication to verify that you are actually the owner of. Multisig, or multi-signatures, is a to use increasingly sophisticated attacks being easy to compromise.
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The bitcoinmixer.info wallet app does not offer 2fa security. If you have a bitcoinmixer.info wallet with 2fa, then it sounds like you might be still using the very old. tion between Bitcoin users in a post-transaction scenario without requiring any trusted third party or additional authentication credentials. This is an. Properly used 2-factor authentication is one of the strongest defenses against account abuse and crypto theft. (But improperly-used 2FA can actually make.