Telecommunications
10 T-Mobile security leaders
These ten T-Mobile cybersecurity leaders include former senior vice presidents of digital security and cyber transformation, a former vice president of trust and cyber risk and senior directors who run security architecture, security validation, cyber operations and telecom network security. A reader can learn how security leaders run security organizations inside T-Mobile.
Professionals to explore
01—10Bill Boni
LinkedInExperience: Senior Vice President Digital Security · T-Mobile
Senior Vice President of Digital Security at T-Mobile from 2017, with a headline that describes him as the retired former SVP of Information Security at T-Mobile USA. Other roles shown are Corporate Security Officer at Motorola Mobility (2008–2009), CVP Information Technology and Security at Motorola Mobility (2000–2008) and Vice President at the Information Systems Audit and Control Association (2003–2006).
Chris Wallace
LinkedInExperience: Sr. Director, Advanced Security Validation · T-Mobile
Senior Director of Advanced Security Validation at T-Mobile since 2022, after serving as Director of Cyber Risk there (2019–2022). Other T-Mobile roles shown are Senior Enterprise Information Security Manager (2016–2019) and Senior Security Analyst (2010–2016); his profile lists specialties in security assessments and risk management.
Dr. Jeffrey Colorossi DSc. Cyber Security, CISM CISSP CRISC
LinkedInExperience: Head of Security Design and Engineering · T-Mobile
Head of Security Design and Engineering at T-Mobile since 2014, alongside Senior Manager roles in enterprise information security there. Other roles shown are Chief Information Security Officer at Zones (2011–2013) and at the Washington State Department of Enterprise Services (2007–2011); his profile cites more than 20 years of cyber security leadership.
Eric Jensen
LinkedInExperience: Sr Director, Cybersecurity · T-Mobile
Senior Director of Cybersecurity at T-Mobile since 2023, based in Overland Park and tagged at Director level. Other T-Mobile roles shown are Director of Service Management for end user support and Senior Manager in Product & Technology for collaboration services; he was also Director of Software Development at Expedia Group.
Erik Rudd
LinkedInExperience: Director, Cybersecurity Strategy & Engineering · T-Mobile
Former Director of Cybersecurity Strategy & Engineering at T-Mobile (2017–2024), and now Director of Product Security at ADT. Other T-Mobile roles shown are Senior Manager of Cyber Risk & Conformance (2016–2017) and Principal Cyber Risk Analyst (2014–2016), with a profile citing more than 20 years in cyber security and network engineering.
Gaurav Madan
LinkedInExperience: Sr Director, Cybersecurity (Telecom Cloud and Networks) · T-Mobile
Former Senior Director of Cybersecurity for Telecom Cloud and Networks at T-Mobile (2024–2026), and now Senior Director of Software Development there. Other T-Mobile roles shown are Distinguished Member of Technical Staff for System Architecture and Cybersecurity (2021–2024) and Principal Engineer in Information Security (2010–2016).
Laura Buckland
LinkedInExperience: Senior Vice President, Chief Cyber Transformation Officer · T-Mobile
Senior Vice President and Chief Cyber Transformation Officer at T-Mobile from 2021; her headline describes her as retired from the role and now a strategic advisor. Another T-Mobile role shown is Senior Vice President of Litigation & IP (2004–2021), so she has held both legal and cyber leadership roles at the company.
Matthew Bybee
LinkedInExperience: Director of Cyber Security Operations - Threat Response (CSOC, CIRT, Remediation) · T-Mobile
Director of Cyber Security Operations for Threat Response at T-Mobile since 2023, covering the cyber security operations center, incident response team and remediation. Other T-Mobile roles shown are Cybersecurity & T-Mobile for Business IT Operations (since 2025) and Cybersecurity Director of Business Planning (2022–2023).
Ryan Hollinger
LinkedInExperience: Sr, Director - IP and Security Architecture · T-Mobile
Senior Director of IP and Security Architecture at T-Mobile since 2021, a role the profile places in the Engineering and Technical department at Director level. Other T-Mobile roles shown are Director (2016–2021), Senior Manager (2013–2016), Manager (2011–2013) and Principal Engineer (2007–2011).
Tim Rains
LinkedInExperience: Vice President, Trust and Cyber Risk · T-Mobile
Former Vice President of Trust and Cyber Risk at T-Mobile (2022–2024), where his profile says he directed macro cybersecurity strategy. He is now Vice President and CISO at ADT; other roles shown are security and compliance leadership roles at Amazon Web Services (2017–2022) and an NSTAC subcommittee seat.
Choose the right perspective
Match the person's remit to your question, since network security architecture, security validation, cyber operations and cyber risk are led by different people at T-Mobile. Check whether the person holds the role now or held it in the past before asking about current practice.
Questions to take into the conversation
- 01How does a wireless carrier secure its telecom cloud and core network?
- 02How does a carrier run a cyber transformation program across its security organization?
- 03How does a telecom security team validate controls and respond to threats?
Reaching T-Mobile security leaders
How can I contact one of these T-Mobile 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: T-Mobile, based on profile data retrieved on October 8, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach T-Mobile security leaders?
You choose the offer, starting at $5 per person. It includes Instant Expert's 20% fee, so an offer that pays the person $100 costs you $125. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
Request a correction or removal