Progressive Trust

Progressive trust is the idea that you do not need to know everything about a customer, or verify them to the highest level, before letting them in. You let an unknown visitor start with almost no friction, then earn and raise assurance over time, matched to what the customer is actually trying to do. Browsing needs little; moving money needs a lot.

It is the trust counterpart to progressive profiling. Where progressive profiling gathers profile data gradually, progressive trust raises identity assurance gradually: a low-friction social sign-in is fine for a basic account, and a higher-value action triggers step-up authentication or full identity proofing only at the moment it is warranted. This keeps the common path frictionless while reserving rigor for where it pays off.

In CIAM, progressive trust ties together several mechanisms: the NIST assurance levels that describe how strong proofing and authentication are, step-up at sensitive actions, and the continuous, signal-driven assessment of adaptive authentication. The shared principle is that assurance should track value and risk rather than being demanded uniformly up front, which is what lets a platform protect high-value actions without taxing every interaction.

Sources

• NIST SP 800-63, Digital Identity Guidelines (assurance levels): https://pages.nist.gov/800-63-3/