WASHINGTON — Tiny iron particles may be the next item in the banking industry's antifraud toolkit.

Visa Inc. and Fifth Third Bancorp are testing a system that evaluates the physical properties of the iron in the magnetic stripes on payment cards. The companies say these characteristics are different for every card and can function as a financial "fingerprint" that could prevent stolen account data from being used to produce counterfeit cards.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.