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I would imagine similar to a SAML Persistent Name Alias. facebook knows who you are - but they just send a non-identifying string/GUID to the service who is tr
by whatusername 12y ago
I would imagine similar to a SAML Persistent Name Alias.
facebook knows who you are - but they just send a non-identifying string/GUID to the service who is trying to log you in. This is a consistent ID (so that service can build a profile) - but it does not contain any identifying data.