They won a bounty worth several thousand dollars in cash and prizes from the "istouchidhackedyet.com" contest.
As part of that contest, the hackers had to produce a video showing exactly how they did it. The first video fell short, so the group produced a second one that has the step-by-step process.
After watching this, there's one thing clear: it's not easy to do. They lifted the finger print, scanned it, and then went through several steps to build a fake model of the print out of latex.
So, it's not like someone is going to grab your fingerprint from a beer glass and break into your iPhone while you're out on the dance floor. But if someone does have access to your fingerprint and the determination to spoof it, this shows how it can be done.
Starbug's Touch ID Attack. from Nick De on Vimeo.