Alex is the Director of Identity Security for Microsoft. Billions of users sign in to millions of apps almost 20 billion times per day on Microsoft’s Identity platform. The Identity Security team protects users from unauthorized access, account takeover and abuse. If you have signed into Xbox, Skype, Outlook, Office 365, Azure, Dynamics or any number of our B2C sites or organizations using Azure AD, we’re the team standing between you and the hackers. In addition to detection, investigation and response, the Identity Security team delivers products including Azure AD Multi-Factor Authentication, Identity Protection, Conditional Access, and the Authenticator App, as well as a host of enterprise and consumer account defense systems. Prior to his current role, Alex served in a variety of engineering and product management roles on products such as MSN, Visual Studio, Xbox, and Identity related products like Active Directory. Outside of work, Alex is passionate about interfacing with various humans, making stuff, sailing, and music.

Maria Puertas Calvo leads Microsoft’s Identity Security and Protection data science team. She focuses on improving the intelligence behind Azure AD Identity Protection and all Microsoft Account prevention and detection systems. Her work translates into constant improvements of the Machine Learning algorithms that keep Microsoft users secure and protected. Before Identity, she worked on detecting spam on Outlook.com. Maria has a Master’s in Computer Science from the Autonomous University of Madrid, Spain, where she also did academic research in biometrics and Machine Learning.