Abstract or Summary:
Talk focuses on the cryptographic and authentication technologies used by Facebook. The presentation discusses how user passwords are hashed at Facebook, how they detect login anomalies that help them separate users from attackers, and overall security hygiene. Facebook also watches for password dumps from other organizations, collects them, and compares them to their own user population so they can warn the users with shared passwords that a password change is needed.

PasswordResearch.com Note: Video of presentation: https://video.adm.ntnu.no/pres/54b660049af94