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Ariel Weintraub (she/her) is currently Chief Information Security Officer (CISO) at Aon where she is responsible for the company’s global cybersecurity program.

Prior to joining Aon in 2024, Ariel served as the CISO at MassMutual for three years where she first joined to build and mature the organization’s Global Security Operations Center. Prior to her role at MassMutual, Ariel served as Senior Director of Data & Access Security within Cybersecurity Operations at TIAA where she led a three-year business transformation program to position IAM as a digital business enabler. Before working at TIAA, Ariel was Global Head of Vulnerability Management at BNY Mellon and was part of the Threat & Vulnerability Management practice at PricewaterhouseCoopers. 

Ariel earned a Master of Science in Cybersecurity from New York University Tandon School of Engineering and a Bachelor of Science in Business Administration from the University of Southern California Marshall School of Business.  

Ariel’s passions include maximizing the value of threat intelligence sharing across the financial services sector, empowering women in the technology field, and tackling the cybersecurity workforce shortage while increasing its diversity. In addition to her CISO responsibilities, Ariel serves on the Board for the Executive Women’s Forum, the ISACA One in Tech Foundation, and the FS-ISAC Board of Directors. Her expertise and passions have been featured in various speaking engagements and news outlets including CSO Online, Women in Security Magazine, the CISO Series, Information Week, and many more. Most recently, she was recognized as one of Security Magazine’s Top Cybersecurity Leaders of 2023.