Intrusion has been refining threat prevention since 2001, with 40+ years as a company founded in 1983. Shield blocks what other security tools miss, using the Global Threat Engine and 8.5 billion IP and DNS combinations.
| What it does | Delivers prevention-first cybersecurity that blocks malicious traffic at the network layer. |
|---|---|
| Who it's for | Organizations that have invested in detection and response but still need prevention. |
| How it deploys | Five Shield products covering every layer where prevention belongs. |
| What you get | Fewer incidents, lower analyst workload, and measurable proof of prevented threats. |
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.
Detection means the threat already landed. Response means the damage is underway. Intrusion takes a fundamentally different approach.
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.
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.
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.
No agents. No software installs. No user disruption. Shield goes inline at the network level and starts blocking immediately.
When threats are blocked before they land, your SOC team stops drowning in false positives and starts focusing on strategy.
Most tools watch what's coming in. Shield also evaluates what's going out, cutting off data exfiltration and C2 communication.
Before every attack, threat actors probe your network. Shield blocks and blocks malicious connection attempts before they become an attack path.
Shield operates under the assumption all networks are compromised. Every connection is evaluated. Nothing is inherently trusted.
Shield OnPremise, cloud, and endpoint. Every environment, every deployment model. One intelligence engine behind every deployment model.
"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
Book a demo and we'll walk through your specific environment, threat profile, and deployment fit. No generic pitch. No pressure.
RECOMMENDED NEXT STEP