As I remembered, but taken from wikipedia;
"In 2012, Apple acquired
AuthenTec, a company focused on fingerprint reading and identification management software, for $356 million."
They were in the right place at the right time when they bought the best tech available out there that hadn't been used mass market yet. Remember Samsung et al had fingerprint readers before

, but were clunky implementations of it.
5yrs I'm not so sure, despite what you may believe, I think that was mentioned as a quote on SJ's passing, but not officially from

!