Samsung is working to use biometric sensors in its mobile security system which the company expects to be available even for low-end smartphone models, an executive said Monday.“We’re looking at various types of biometric [mechanisms] and one of things that everybody is looking at is iris detection,” Samsung’s senior vice president Rhee In-jong told analysts and investors at a forum in Hong Kong. Rhee spearheads the development of Samsung’s mobile enterprise software called Knox. Biometric authentication in mobile devices today consists mainly of using a user’s fingerprint as a scanner. Samsung first adopted fingerprint scanning into its smartphones with the Galaxy S5 launched in April, about seven months after Apple’s iPhone 5S. “We, as a market leader, are following the market trend,” he said.