Biometric technologies are seeing widespread usage through social networking services (SNS) such as Facebook and Google+. These SNS are using face recognition to help users organize photos and tag the individuals in each photo, making face images more searchable and discoverable. Surprisingly, these algorithms are able to deal with images considered extremely challenging for traditional face recognition systems. The presentation will discuss how well online face recognition algorithms actually work based on in-depth performance tests, whether they are improving over time, their vulnerabilities and limitations, and what online face recognition means for privacy and security.