Contact

Reach the team. No detour.

Shield gives enterprise and mid-market security teams a prevention-first network defense. Shield blocks malicious traffic at the network layer using the Global Threat Engine and 8.5 billion IP and DNS combinations refined since 2001.

Know More. Miss Less.

Direct contact information for sales, support, partnerships, and media. We are a publicly traded company headquartered in Plano, Texas, and we respond within one business day.

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By function

Pick the right contact.

Sales.

sales@intrusion.com

For evaluation conversations, demo requests, and POV scoping. The fastest path is to Book a Meeting.

Support.

support@intrusion.com

For existing customers. Production support requests, configuration questions, and incident response coordination.

Partnerships.

partners@intrusion.com

For channel, MSSP, and technology partnership inquiries. We work through a defined partner program.

Press & analyst.

press@intrusion.com

For media inquiries, analyst briefing requests, and corporate communications.

Investor relations.

ir@intrusion.com

NASDAQ: INTZ. SEC filings and investor materials available through our corporate disclosure channels.

Government & SLED.

government@intrusion.com

For state, local, education, and federal-adjacent inquiries. Cooperative procurement vehicles supported.

Headquarters

Plano, Texas. Founded 1983.

Intrusion Inc.
101 East Park Boulevard
Suite 1300
Plano, TX 75074
United States

Phone: (972) 234-6400
General: info@intrusion.com

Intrusion is publicly traded on the NASDAQ under INTZ. The company was founded in 1983.

NASDAQ: INTZ. Publicly traded.
Founded 1983. Forty-plus years of network security work.
Plano, Texas. American-owned, American-operated.
One business day response. Standard across all inbound channels.

Last step

Get a clear
yes or no.
Book the demo.

30-minute discovery call. No deck, no detour. We show you what Shield would block in your environment and answer the questions your stack hasn't.

Book A Demo

Block!

Reach the team. No detour.

Pick the right contact.

Plano, Texas. Founded 1983.

Ready to see what Shield finds in your environment?