Electronic identity authentication lets a business collect, associate, and confirm personally identifiable information — anywhere from a basic name/address/phone match up to more sensitive data like date of birth, SSN, or a national identity number. Providers offer this through a hosted lookup or ongoing database access billed monthly, quarterly, or annually.
What to evaluate in a provider
- How often the underlying data and matching logic get updated
- Whether both an API and a manual lookup UI are available
- Which data points are actually supported — address, name, phone, email
- Coverage gaps for international data, Canada, and Puerto Rico
- Regional strengths in phone, address, or email accuracy specifically
- Real-world accuracy testing, not just vendor claims
Manual vs. API
A manual, hosted lookup returns a result like full match, partial match, multiple matches, a known-negative flag, or not found. An API integration is built for automation — it returns a simple yes/no or match/no-match designed to feed straight into a rules engine or risk model.
Authentication is not verification
Authentication confirms that identity data points are associated with each other. Verification means actually contacting the person through one of those data points. Authentication alone is vulnerable to a fraudster using someone else's real, matching identity details — it takes both to close that gap.
Known limitations
Sophisticated fraudsters can work around it. People who relocate frequently — military families especially — create false negatives. There's always some lag between real-world changes and database refreshes, unlisted numbers can't be validated, and legitimate mismatches happen constantly (a gift shipped to someone else's address, for instance).