Wealth management
10 Vanguard security leaders
These ten Vanguard security leaders hold director-level and head-of cybersecurity roles at Vanguard. A reader can learn how security leaders work at Vanguard from people who have held the role.
Professionals to explore
01—10Bradley Benkoski
LinkedInExperience: Business Information Security Officer · Vanguard
Business Information Security Officer at Vanguard since April 2025. Another Vanguard role shown is Identity & Access Management Operations Department Head overseeing global access operations (2018–2025), based in the Philadelphia area according to the profile.
Charles Sgrillo
LinkedInExperience: Global Head of Offensive Security & Fraud Testing · Vanguard
Global Head of Offensive Security & Fraud Testing at Vanguard since July 2026. Other Vanguard roles shown are Senior Manager - Offensive Security & Fraud Testing (2024–2026), Senior Manager, Cyber Penetration Testing and Red Team (2022–2024) and Senior Red Team Analyst (2019–2022); also Adjunct Professor at Temple University since 2024.
Cheryl Flannery, CISSP, PMP
LinkedInExperience: Head of Global GRC and Cyber Strategic Operations · Vanguard
Head of Global GRC and Cyber Strategic Operations at Vanguard since October 2024, and Security Operations Product Owner and Program Management Head at Vanguard since 2022, a role the profile places at Director level. Other roles shown at Pfizer are Sr. Director, Security Strategy, Governance, Risk Management (2015–2019) and Sr. Director, Cloud, Security, IOT, and Infrastructure Architecture Practice Leader (2019–2022).
Christopher Carroll
LinkedInExperience: Head of Cyber Security Architecture · Vanguard
Head of Cyber Security Architecture at Vanguard since June 2024, based in Charlotte. Other Vanguard roles shown are Senior Cloud Security Manager (2023–2024), Senior Cloud Security Architect-Engineering-Operations (2021–2023) and Cyber Defense Lead (2017–2021).
Jacob Webster
LinkedInExperience: Risk Director, Cybersecurity, Fraud, and Offensive Security · Vanguard
Risk Director, Cybersecurity, Fraud, and Offensive Security at Vanguard since July 2024, in a role the profile places at Director level. Other Vanguard roles shown are Head of Information Assurance and Vulnerability Management (2022–2024), Security Assurance Manager (2019–2022) and IT Chief of staff (2017–2019).
Matthew S.
LinkedInExperience: Head of Information Cyber Security EMEA · Vanguard
Head of Information Cyber Security EMEA at Vanguard since June 2024. Other roles shown are CISO / Chief Information Security Officer Group Functions and GBS at Standard Chartered (2022–2024), Group Functions Head of Information Cyber Security at Standard Chartered (2020–2022) and a BISO role at Thomson Reuters (2013–2019).
Richard Bourne, CISSP
LinkedInExperience: Director of Insider Risk Management · Vanguard
Director of Insider Risk Management at Vanguard since May 2022, based in Malvern, Pennsylvania. Other Vanguard roles shown are Senior Insider Threat Analyst (2017–2022) and Information Security Analyst (2012–2017), and Windows Enterprise Desktop Architect (2009–2012).
Seamus Quinn
LinkedInExperience: Global Head of Cybersecurity Controls, · Vanguard
Global Head of Cybersecurity Controls at Vanguard since 2022; the profile headline describes securing AI, data, cloud environments and applications. Other Vanguard roles shown are Information Assurance and Vulnerability Management Leader (2020–2022), Sr. Cyber Security Manager (2019–2020) and Enterprise Security and Fraud Manager (2018–2019).
Stefan Dieni
LinkedInExperience: Head of Security Architecture and Engineering, Europe · Vanguard
Head of Security Architecture and Engineering, Europe at Vanguard since November 2024, based in London. Other roles shown are Director of Cyber Engineering & Architecture at Capital One (2022–2024) and Head of Security, Tech Optimisation Cloud Programme at Lloyds Banking Group (2021–2022).
Timothy Black
LinkedInExperience: Head of Cybersecurity Vendor Management · Vanguard
Head of Cybersecurity Vendor Management at Vanguard since June 2023, after serving as Director of Cybersecurity Audit and Advisory Services at Vanguard from 2017 to 2023. Other roles shown are Cyber Security Solutions Leader (2014–2017) and Lead Information Assurance Engineer (2011–2014) at Lockheed Martin.
Choose the right perspective
Match the person's area, such as security architecture, offensive security testing, insider risk, controls or governance, to the decision you need help with. Consider whether your question is about Vanguard's US or European operations, since some of these leaders cover one region.
Questions to take into the conversation
- 01How does an asset manager decide which cybersecurity controls to standardize across cloud, data and applications?
- 02How do offensive security and fraud testing teams choose what to test each year at a financial firm?
- 03How does a financial services company run an insider risk program alongside its other security functions?
Reaching Vanguard security leaders
How can I contact one of these Vanguard security leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: Vanguard, based on profile data retrieved on October 15, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach Vanguard security leaders?
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Can an AI agent ask one of these Vanguard security leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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