Why Intrusion

Your tools alert you.
We stop the attack.

Most cybersecurity products tell you something bad happened. Intrusion blocks it from happening in the first place. Prevention isn't a feature we added. It's the reason we exist.

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8.5B+
IP Addresses Tracked
40+
Years in Cybersecurity
20+
Years of Threat Intelligence
100%
Packet Inspection
The Prevention Gap

The industry perfected detection.
We chose prevention.

Detection means the threat already landed. Response means the damage is underway. Intrusion takes a fundamentally different approach.

The detection model
Alert after a threat enters the network
Rely on SOC teams to triage thousands of daily alerts
Focus primarily on inbound traffic
Use third-party or crowdsourced threat feeds
Require endpoint agents on every device
Treat reconnaissance as invisible noise
The Intrusion model
Block malicious connections before they execute
Automate prevention so your team focuses on strategy
Evaluate all traffic, inbound and outbound
Proprietary intelligence built in-house since 2001
Deploy inline at the network level, zero agents
Identify and block reconnaissance before the attack begins
The Engine Behind It All

8.5 billion IP addresses.
One proprietary database.

Since 2001, our threat intelligence team has built the largest commercial IP reputation database in the world. It's not crowdsourced. It's not a patchwork of third-party feeds. It's proprietary intelligence, built in-house, updated continuously, and purpose-built for blocking threats before they execute.

Every connection on your network, inbound and outbound, is evaluated against this database in real time. It's the single engine behind every Shield product and every deployment model we offer.

Three Layers of Scoring

Reputation

Every IP scored against known associations: malware distribution, phishing infrastructure, botnet participation, and C2 communication.

Behavioral History

Patterns over time reveal intent. An IP that changed hands and started scanning ports last week gets flagged immediately.

Historical Context

Full ownership and registration records going back over two decades. Context that no real-time-only feed can match.

Trust & Credibility

This isn't a startup pitch.
It's a proven track record.

Intrusion was founded in 1983 and has been publicly traded on NASDAQ ever since. Our leadership has secured networks at the highest levels of government. We're not asking you to take a chance.

1983
Founded
Over four decades of network security and infrastructure protection. Headquartered in Plano, TX.
INTZ
NASDAQ Listed
Publicly traded with full financial transparency and regulatory accountability.
U.S.
Federal CIO
CEO Tony Scott served as Federal Chief Information Officer under President Obama, overseeing cybersecurity for the entire U.S. government.
HIPAA
Full healthcare compliance for protected health information.
SOC 2
Type 2 verified by Prescient Assurance per AICPA Trust Service Criteria.
GDPR
Full compliance with General Data Protection Regulation standards.
The Intrusion Difference

We don't replace your stack.
We harden it.

Shield doesn't compete with your firewall, SIEM, or EDR. It fills the gap none of them cover: blocking known-bad connections at the network level before they reach any of those tools.

Deploys in Under 30 Minutes

No agents. No software installs. No user disruption. Shield goes inline at the network level and starts blocking immediately.

Reduces Alert Volume

When threats are blocked before they land, your SOC team stops drowning in false positives and starts focusing on strategy.

Covers the Outbound Blind Spot

Most tools watch what's coming in. Shield also evaluates what's going out, cutting off data exfiltration and C2 communication.

Blocks Reconnaissance

Before every attack, threat actors probe your network. Shield identifies and blocks that reconnaissance activity before it becomes an attack plan.

Strengthens Zero Trust

Shield operates under the assumption all networks are compromised. Every connection is evaluated. Nothing is inherently trusted.

Built for Every Environment

On-prem, cloud, endpoint, high-throughput data centers. One intelligence engine behind every deployment model.

What Our Customers Say

Trust is earned.
Here's the proof.

"I truly feel you all have my back, and that is paramount nowadays."
Richard Rochow — President, NovaTech
"Shield showed us threats our existing security stack had completely missed. We saw results on day one."
IT Director — Regional Healthcare System
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See what your current tools
are missing.

Book a demo and we'll walk through your specific environment, threat profile, and deployment fit. No generic pitch. No pressure.

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