Tom Defnet: Email & Phone Number

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Principal Cybersecurity Engineer 1 at DIRECTV|Denver Metropolitan Area, United States

Position:

Principal Cybersecurity Engineer 1 at DIRECTV

Location:

Denver Metropolitan Area, United States

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Last updated: 2026-08-01

Updated: 2026-08-01

Found email addresses for Tom Defnet:

Business emails:

t*****t@directv.com,

t******t@directv.com

Personal emails:

t********t@gmail.com,

t*******t@gmail.com,

k*****t@hotmail.com

Found phones for Tom Defnet:

+1-520-***-**29,

+1-323-***-**12,

+1-909-***-**10

A different Tom Defnet?

Work Experience 19 years

Principal Cybersecurity Engineer 1 at DIRECTV

Mar 2025 - Current

Principal Cybersecurity Engineer at AT&T

Jan 2017 - Oct 2024

IT Senior Security Analyst 1 at DIRECTV

Jun 2015 - Dec 2016

Principal Security Engineer 1 at DIRECTV

Oct 2012 - Jun 2015

Network Engineer at DIRECTV

Jun 2007 - Oct 2012

Tom Defnet started working in 2007, then the employee has changed 1 company and 4 jobs. On average, Tom Defnet works for one company for 3 years 9 months.

Their professional focus is BGP, Broadcast, and Cisco IOS across 3 core areas.

Tom holds Certificate of Cloud Security Knowledge v.5, Certificate of Competence in Zero Trust (CCZT), and Python for Cybersecurity certifications.

Education

Bachelor of Arts - BA at Colorado State University

Frequently Asked Questions

What is Tom Defnet's email address?

SignalHire found verified email addresses for Tom Defnet, both business and personal. Their business email is t*****t@directv.com, and personal emails include t********t@gmail.com, t*******t@gmail.com, and k*****t@hotmail.com.

What is Tom Defnet's phone number?

SignalHire found multiple verified phone numbers for Tom Defnet: +1-520-***-**29, +1-323-***-**12, and +1-909-***-**10.

How do I contact Tom Defnet at DIRECTV?

You can reach Tom Defnet through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Tom Defnet's professional background?

Tom Defnet has 19 years of professional experience. They have held roles including Principal Cybersecurity Engineer, IT Senior Security Analyst 1, and Principal Security Engineer 1 at companies such as AT&T, DIRECTV, and DIRECTV. Their education includes Bachelor of Arts - BA from Colorado State University.

Is Tom Defnet's contact information up to date?

Yes. Tom Defnet's SignalHire profile was last updated on 1 August 2026, reflecting their current position as Principal Cybersecurity Engineer 1 at DIRECTV in El Segundo, CA, United States.

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