Joe Sullivan is a seasoned security executive with extensive experience in cybersecurity, risk management, and legal affairs, particularly within high-profile technology companies. He began his career as a federal prosecutor with the U.S. Department of Justice, specializing in cybercrime. Sullivan later transitioned to the private sector, holding key security leadership roles, including Director of Security and acting CISO at eBay and PayPal, Chief Security Officer (CSO) at Facebook, CSO at Uber, and CSO at Cloudflare. His career has been marked by navigating complex security landscapes, incident response, and shaping security culture within fast-growing tech organizations. He gained significant public attention for his handling of a 2016 data breach at Uber, which led to legal proceedings.
Joe Sullivan's work history includes a series of influential roles in various companies. Here is a detailed list of his professional journey:
As one of Facebook's early security leaders (CSO from 2010-2015), he built and scaled the company's security programs during a period of rapid global growth, addressing novel security and privacy challenges.
Led global security efforts at Uber (2015-2017) and Cloudflare (2018-2021), responsible for physical and cyber security, trust and safety, and incident response in dynamic and challenging environments.
Served as an Assistant U.S. Attorney for the Northern District of California, where he was a founding member of the Computer Hacking and Intellectual Property (CHIP) unit, prosecuting high-tech crimes.
Through his various roles, Sullivan has influenced security practices and talent development across Silicon Valley, contributing to the broader cybersecurity community dialogue.
Pepperdine University - Year 2009
Thomas Aquinas College - Year 2005
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Partybus was a Y Combinator-backed startup (W12 batch) that developed an online platform to simplify the process of finding and booking party buses, limousines, and other group transportation options for various events. It aimed to connect users directly with local vehicle operators, streamlining price comparison and reservation.
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