Fraud prevention and risk management firm Early Warning Services (EWS) has purchased Authentify. Terms were not disclosed. EWS provides 1,100 U.S. financial institutions with protection for deposit, retirement, and credit account products. Authentify provides more than 1,200 financial institutions and ecommerce companies with phone-based and multifactor out-of-band authentication for online transactions. Early Warning Services’ roots go back to the 1990s when banks based in the western U.S. that were also members of the Star PIN-based EFT system, shared data related to fraud from checking...