Cassandra Sumner
Senior Director, Fraud Strategy Vonage
Cassandra Sumner is the Senior Director of Fraud Strategy at Vonage, where she leads the development and execution of fraud prevention and mitigation initiatives across the organization. With over 20 years of experience spanning fraud prevention, forensic accounting, and financial analysis, Cassandra brings expertise from both public and private sectors.
Prior to joining Vonage, Cassandra served at the Federal Bureau of Investigation, where as Chief, she led the national forensic accountant program and set strategic direction for the program’s investigative capabilities across multiple threat areas. Her career also includes public accounting and corporate roles in the private sector.
Cassandra holds a Bachelor of Science in Accounting from Indiana University-Bloomington and a Master's in Accounting with a concentration in Forensic Accounting from Florida Atlantic University. She is a licensed CPA and Certified Fraud Examiner (CFE).
2026 Agenda Sessions
Can financial institutions stay ahead of fraud when the threat moves faster than the tech?
Fraud is evolving at a pace that outstrips most financial institutions’ ability to respond. As AI driven attacks, network level exploits, and cross channel fraud accelerate, the industry is being forced to rethink how security is designed, deployed, and governed. This session brings together leaders shaping the next generation of fraud prevention — from network APIs to cloud scale intelligence — to explore how banks and fintechs can shift from reactive defence to proactive protection.
We’ll examine how network powered signals, real time analytics, and cloud native architectures are transforming fraud detection, and what it takes to operationalize these capabilities without adding friction for customers. The conversation will also unpack the organisational and regulatory realities: how to build trust, align stakeholders, and future proof security strategies in an environment where threats evolve daily.
Takeaways:
• How network level intelligence and cloud scale analytics are reshaping fraud prevention
• What it takes to move from reactive fraud response to proactive, predictive protection
• How to balance customer experience with stronger authentication and risk controls
• What financial institutions must do today to prepare for the next wave of AI driven fraud
Sponsored by Vonage
Wednesday 01 April 13:05 - 13:50 Banking
We’ll examine how network powered signals, real time analytics, and cloud native architectures are transforming fraud detection, and what it takes to operationalize these capabilities without adding friction for customers. The conversation will also unpack the organisational and regulatory realities: how to build trust, align stakeholders, and future proof security strategies in an environment where threats evolve daily.
Takeaways:
• How network level intelligence and cloud scale analytics are reshaping fraud prevention
• What it takes to move from reactive fraud response to proactive, predictive protection
• How to balance customer experience with stronger authentication and risk controls
• What financial institutions must do today to prepare for the next wave of AI driven fraud
Sponsored by Vonage Banking US/Pacific
