Google has acquired SlickLogin, a startup that allows sounds emitted by smartphones for a password replacement or 2-factor security authentication system. The acquisition is estimated to be worth “several million” for the start-up. Not bad for a company that has been around for just a few months.

SlickLogin confirmed the acquisition on its site today:

Today we`re announcing that the SlickLogin team is joining Google, a company that shares our core beliefs that logging in should be easy instead of frustrating, and authentication should be effective without getting in the way. Google was the first company to offer 2-step verification to everyone, for free – and they’re working on some great ideas that will make the internet safer for everyone. We couldn’t be more excited to join their efforts.

While there is no word yet on how Google would use this technology, one thing for certain though is the three man team of SlickLogin is seen as an acqui-hire rather than a buyout of the company’s intellectual property.