Defcon One Security, Inc.

09/26/2025

123K sqft facility.
Burglar Alarm installation.
Vista128BPTSIA add on to Existing system.
2 Additional Keypad
25 Overhead Doors
10 Man Doors
8 Motions throughout facility

09/23/2025

09/03/2025

A DOZEN reasons to schedule your site survey today. Our Alarm monitoring rates NEVER increase. 5, 15 or 30 years down the road you will be paying the same rate...STOP OVERPAYING ON OLD OUTDATED TECHNOLOGY.

09/02/2025

MESSY TECH cleaned up another amateur install. If you have an old, outdated security system don't wait another day, Schedule Now!
www.DefconOneSecurity.com
1(855) DEFCON-1, Option 2.

09/02/2025

MESSY TECH cleaned up another amateur install. Have old, outdated security equipment or left with a messy tech install? Schedule Now! www.DefconOneSecurity.com

04/27/2022

Its time to get out of the high volume rat race. We are looking for ambitious technicians aspiring to step up to a more challenging role, while taking your security knowledge to the next level. We are in a demanding role, installing Intrusion, CCTV and Access control system for the largest corporations in America. Join our winning team.

Easy 1-Click Apply (DEFCON ONE SECURITY, INC.) Security Installation - Lead Technician job in Richardson, TX. View job description, responsibilities and qualifications. See if you qualify!

03/23/2022

Supporting Berkner Rams Baseball
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10/05/2021

Public Service Announcement.

3G/4G Sunset is around the corner.

Unless you call your service provider, your system will no longer be monitored. Your alarm system will stop communicating in 2022 unless you upgrade to the LTE/5G cell communicator.

If you have lost contact with your alarm company Call Defcon One Security in Richardson, TX.

1-855-DEFCON-1

We will take care of your needs.