The Top 5 “InfoSec People Profiles” of 2025
- Finn O'Potamus
- 2 hours ago
- 2 min read
By Finn O’Potamus
Finopotamus presents InfoSec People Profiles, a series spotlighting individuals working in information security (infosec), cybersecurity and/or information governance to protect data and transactions at credit unions, other financial institutions, and fintechs serving the financial services industry. We are pleased to share the top five "InfoSec People Profiles" for 2025 in terms of readership.
Seguin leverages her background in criminal justice and fraud operations to help financial institutions navigate complex fraud threats. She focuses on orchestrating holistic identity risk management solutions that move beyond single-point defenses, emphasizing the need for robust protection across all channels—including contact centers—to combat sophisticated organized crime rings.
Blumberg challenges the traditional cybersecurity mindset by redefining it as "data security" and advocating for consumer empowerment. His app, Aster Key, allows consumers to encrypt and store their own financial data on their mobile devices, minimizing the "hacking surface" for lenders and shifting the model from corporate data ownership to consumer-controlled sharing.
With a background in physics and extensive experience in threat intelligence, Dhamankar shapes strategy for a broad portfolio of offensive and defensive security solutions. He is focused on combating AI-driven threats—such as synthetic voice fraud—and helping organizations break the attacker's "kill chain" through integrated threat intelligence and automated response capabilities.
Sarreshteh leads an "investtech" platform that integrates digital investing directly into credit union offerings, with a heavy emphasis on security-first architecture. By implementing strict controls like "closed-loop" crypto trading (buy/sell/hold only) and serverless infrastructure that stores no PII, he mitigates the risks of social engineering and account takeovers.
Purvis brings expertise from the high-stakes world of online gaming to the financial sector, helping credit unions combat fraud using advanced geolocation technology. He warns against "pig butchering" scams and the sophisticated collaboration of cybercriminals, advocating for a security ecosystem where institutions share knowledge as freely as the fraudsters do.