Self-sovereign identity is a model where you hold your own credentials instead of renting an account from a platform. Today your identity is split across Google, Facebook, banks, and governments. Each one owns the database. Each one can lock you out.
SSI puts the credentials in a wallet on your device, checked with cryptography on a ledger. The pieces are Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs). If you need to prove you are over 18, a government can issue a credential into your wallet. A website asks for proof. You use a zero-knowledge proof to show you are old enough without sending your birthdate, name, or address.
That removes a large honeypot. If the data is not sitting in one corporate table, there is less to steal in one breach. You choose what to show, to whom, and when.
Adoption is the hard part. Issuers, wallets, and verifiers all have to speak the same standards. SSI does not make you a citizen of the internet. It gives you a way to present a proof without handing over the underlying file. Verifiable credentials let an issuer sign a claim (age, degree) that you present without handing over the whole file.
Self-Sovereign Identity (SSI)
Compare traditional fragmented identity vs. user-controlled SSI. Click platforms to see data silos, then explore how SSI puts you in control.
Your Identity is Fragmented
Click on each platform to see what data they control
- • Platforms can delete your account without warning
- • Your data is sold to advertisers
- • No portability between services
- • Single points of failure and data breaches