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10 Comcast security leaders
These ten current and former Comcast security leaders have held director, senior director and executive director cybersecurity roles at Comcast. A reader can learn how security leaders work at Comcast from people who have held the role.
Professionals to explore
01—10Chad Schieken
LinkedInExperience: Executive Director, Global Cybersecurity Operations (Comcast and Sky) · Comcast
Executive Director, Global Cybersecurity Operations (Comcast and Sky) at Comcast since January 2026, leading teams on three continents focused on incident response, digital forensics and threat hunting according to the profile. Other Comcast roles shown are Executive Director, Office of the Chief Security Engineer (2022–2026) and Executive Director Cyber Exposure Management (2018–2022).
Ed Townsend
LinkedInExperience: Director of Product Security · Comcast
Director of Product Security at Comcast since March 2026, leading product security and the secure development lifecycle across Comcast Headquarters, Comcast Business, Strategic Development, and Wireless & New Technology according to the profile. Another Comcast role shown is Senior Product Security Lead & Engineering Manager (2022–2026).
Karim Magdi Mahrous
LinkedInExperience: Executive Director Cybersecurity · Comcast
Executive Director Cybersecurity at Comcast since December 2023, in a role the profile places at Director level in engineering. Other roles shown are Director at Splunk (2021–2023) and Senior Manager (2017–2021) and R&D Staff (2009–2017) at Sandia National Laboratories.
Mallika Srivastava
LinkedInExperience: Director, Information Security (BISO) · Comcast
Director, Information Security (BISO) at Comcast since June 2022. Other Comcast roles shown are Sr. Manager, Xfinity Program & Portfolio Management (2020–2022), Sr. Manager, Cybersecurity Governance, Risk and Compliance (2018–2020) and Manager, Cybersecurity Governance Risk & Compliance (2016–2018).
Patrick D.
LinkedInExperience: Former Director Cloud Security · Comcast
Former Director Cloud Security at Comcast (2021–2022). Other roles shown are Director Information Security at Comcast (2020–2021), Director Information Security at Comcast Technology Solutions (2017–2020) and Enterprise Security Architect at Bluehawk Consulting (2023–2025).
Prashanth G.
LinkedInExperience: Executive Director - Enterprise Authentication, IAM · Comcast
Executive Director - Enterprise Authentication, IAM at Comcast since July 2025. Other Comcast roles shown are Senior Director - Enterprise Authentication, IAM, CyberSecurity (2022–2025), Director - Enterprise Authentication (2020–2022) and Sr Principal Engineer - Shared Services & Security (2017–2020).
Rahin Reza
LinkedInExperience: Director, Cybersecurity & Software Engineering · Comcast
Director, Cybersecurity & Software Engineering at Comcast since July 2025; the profile says Rahin Reza leads cybersecurity engineering focused on building secure, scalable cloud platforms. Other Comcast roles shown are Senior Manager, Cybersecurity Engineering (2023–2025), Manager, Cybersecurity Engineering (2020–2023) and Senior Security Developer (2018–2020).
Ryan Donahue
LinkedInExperience: Senior Director of Cybersecurity · Comcast
Senior Director of Cybersecurity at Comcast since November 2024, leading cybersecurity engineering and platform initiatives focused on asset intelligence, detection and risk reduction according to the profile. Other Comcast roles shown are Director of Cybersecurity (2021–2024) and Principal Security Engineer (2016–2021).
Tony Reinert
LinkedInExperience: Executive Director, Product Security and Privacy · Comcast
Executive Director, Product Security and Privacy at Comcast since February 2024. Other Comcast roles shown are Executive Director, Product Security (2023–2024), Senior Director, Product and Platform Security (2021–2023), Director, SDL Enablement (2019–2021) and Director, Connected Living Information Security (2017–2021).
Varun Kumar
LinkedInExperience: Director of Cyber Security Operations · Comcast
Director of Cyber Security Operations at Comcast since February 2026, based in Chennai. Other Comcast roles shown are Senior Manager - Cyber Security Operations (2022–2026) and Manager - Security Incident Response (2020–2022); other roles shown are Cyber Security Manager (2017–2020) and Senior Consultant (2015–2017) at EY.
Choose the right perspective
Match the person's area, such as product security, cybersecurity operations, identity and authentication, cloud security or business information security, to the question you are bringing. Check whether the person is still at Comcast before asking about current practice.
Questions to take into the conversation
- 01How does a telecom company build security into consumer devices and services from design onward?
- 02How do large companies run global cybersecurity operations across several countries and brands?
- 03How does a large consumer company manage authentication and identity security at scale?
Reaching Comcast security leaders
How can I contact one of these Comcast 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: Comcast, 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 Comcast security leaders?
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Can an AI agent ask one of these Comcast 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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