Authentify plans to integrate its phone authentication system with Trusteer Ltd.'s secure browser technology.

Authentify says it's joined Trusteer's Authentication Partner Program, which lets security technology providers make their systems interoperable with Trusteer's.

Trusteer, in Tel Aviv, offers software that protects against phishing and other online attacks. Authentify, of Chicago, uses phones for authentication. A bank using both could use Trusteer's technology for typical online banking sessions while requiring Authentify's system for higher-risk transactions.

"With Trusteer protecting the web session and Authentify providing undeniable contact with the account holder, our customers will be well positioned against a variety of threats," Peter Tapling, Authentify's president and chief executive, said in a press release.