Network Inspector – Email & Data in Motion DLP

Content-Aware Reverse Firewall™ That Stops Data Exfiltration Before It Happens

Email remains the top threat vector for data breaches, whether through accidental leaks, insider threats, or targeted attacks. GTB Technologies’ Network Inspector functions as a Content-Aware Reverse Firewall™, scanning all protocols and ports in real time to secure email and data-in-motion across your enterprise network. Unlike traditional tools, GTB goes beyond signature or pattern matching to deliver intelligent, accurate, and scalable DLP.

Advanced Email Data Loss Prevention (Email DLP)

GTB’s Email DLP solution performs deep content inspection of all outbound emails, including SMTP, MTA, webmail, and encrypted channels. With patented AccuMatch™ fingerprinting, it identifies sensitive content across file types, formats, encodings, and languages, even when data is modified or hidden.

  • Detects BEC attacks, social engineering, and data leakage
  • Covers Office 365, Gmail, and third-party email services
  • Inspects encrypted traffic via SSL/TLS proxy with no performance degradation

Full Protocol & Port Coverage, Not Just HTTP or SMTP

GTB monitors all 65,535 network ports and protocols, including obscure and encrypted channels often exploited by advanced persistent threats (APTs). The system detects:

  • Unauthorized peer-to-peer applications
  • Covert channels
  • Custom encryption tools
  • Hidden data exfiltration over nonstandard protocols

This full-spectrum visibility is critical for modern hybrid and remote work environments.

Drip-DLP: Stop Stealthy Insider Threats

GTB’s Drip-DLP™ technology detects slow, low-volume data leaks, often used in insider attacks or APTs. Unlike volume-based or time-based rules, Drip-DLP spots fragmented data exfiltration patterns spread over time and protocols, preventing stealthy theft of intellectual property or PII.

Key Capabilities of GTB Network Inspector

  • Full MTA & SSL/TLS Proxy: Inspect encrypted email and web traffic without impacting performance
  • Real-Time Content Analysis: Analyze data at line speed with near-zero delay
  • Partial File Matching: Detect fragments of sensitive documents regardless of channel
  • Automated, Policy-Based Response: Block, quarantine, encrypt, or prompt user justification in real time
  • Forensic Logging: Maintain complete audit trails for compliance, investigation, and accountability

Business Email Compromise (BEC) Defense

Integrated with leading BEC protection tools, GTB provides independent content inspection and behavioral analysis to detect:

  • CEO fraud
  • Vendor impersonation
  • Domain spoofing and social engineering

Suspicious behaviors trigger automated response workflows, minimizing risk without disrupting communication.

Flexible Deployment & Seamless Integration

Deploy GTB Network Inspector in inline or passive monitoring mode, with full support for:

  • On-premises or cloud-based email (Office 365, Gmail, hybrid)
  • SIEM integration for incident response and orchestration
  • Compatibility with encryption gateways, sandboxes, and third-party security stacks

Intelligent, Scalable Protection

GTB’s DLP operates at gigabit speeds without degrading performance. The solution supports high-availability configurations, ensuring continuous protection even during upgrades or outages. With advanced machine learning, detection accuracy improves over time while minimizing false positives.

Intelligent, Scalable Protection

GTB’s DLP operates at gigabit speeds without degrading performance. The solution supports high-availability configurations, ensuring continuous protection even during upgrades or outages. With advanced machine learning, detection accuracy improves over time while minimizing false positives.

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Secure Email & Network Data at Line Speed

Stop breaches before they happen. Protect your organization’s data in motion with GTB’s Network Inspector.