There has been tremendous buzz on that front already, while leaked One Max pictures kept pouring with a mysterious square region underneath the rear camera that speculation pegged to be a fingerprint scanner, similar to the Apple iPhone 5s' new Touch ID technology. We even had an alleged tester of the One Max confirm he'd been using the fingerprint sensor for a few days already, and found it to be very accurate...
Source: http://www.phonearena.com/news/HTC-One-Max-fingerprint-sensor-confirmed-by-WSJ-release-date-pegged-for-October-15_id48076
Source: http://www.phonearena.com/news/HTC-One-Max-fingerprint-sensor-confirmed-by-WSJ-release-date-pegged-for-October-15_id48076