Activity Control
An enterprise data loss prevention and secure boot solution designed to protect sensitive corporate data. Includes endpoint monitoring, device encryption, USB access control, secure boot chain verification, and centralized policy management. Deployed across large organizations with thousands of endpoints.
The Challenge
A major enterprise security division required a comprehensive data loss prevention solution that could protect sensitive data across thousands of heterogeneous endpoints. Existing DLP tools were either too intrusive for daily workflows or too permissive to satisfy regulatory compliance audits.
The solution needed to operate at the kernel level to enforce secure boot chains and prevent unauthorized data exfiltration via USB devices, network shares, and cloud storage, while maintaining minimal impact on system performance and user productivity.
Our Approach
We built the endpoint agent in C++ with Linux kernel modules for low-level device monitoring and secure boot chain verification using the Trusted Platform Module. The agent intercepts file operations, USB device connections, and network transfers at the kernel level, applying organization-defined policies in real time.
A centralized management console built with Electron and Python provides security teams with a unified dashboard for policy configuration, incident review, and compliance reporting across the entire endpoint fleet. All agent-to-server communication is encrypted with AES-256 and authenticated via mutual TLS.
The Solution
Kernel-Level Endpoint Agent
A lightweight C++ agent with custom Linux kernel modules that monitors file operations, device connections, and network activity. Enforces granular data policies with under 2% CPU overhead, ensuring security without impacting productivity.
Secure Boot Verification
TPM-backed secure boot chain validation ensures that only authorized operating system images and drivers load during startup. Any tampering triggers an immediate alert and optional lockdown of the endpoint.
Centralized Policy Management
A cross-platform management console that allows security teams to define, deploy, and audit DLP policies across thousands of endpoints. Includes role-based access, compliance reporting templates, and real-time incident dashboards.
Results
Since deployment, the organization has reported zero data breach incidents across its entire endpoint fleet. The agent maintains an average CPU overhead of just 1.4%, well under the 2% target. Security teams resolved incidents 92% faster thanks to centralized monitoring and automated policy enforcement.
Technologies Used
“The depth of kernel-level expertise G1 brought to this project was exceptional. They delivered an agent that is virtually invisible to end users yet provides the security coverage we need to pass the most stringent compliance audits.”
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