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Sentinel Data – Hardware- Bound CLI tool to prevent data exfiltration

Sentinel Data – Hardware- Bound CLI tool to prevent data exfiltration

by Anaoliveira·Mar 7, 2026·1 point·2 comments
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AI Analysis

○Pass

Hardware-binding encryption premise is sound, but YouTube demo alone provides zero technical substance.

Strengths
  • •Identifies a real gap: DLP systems fail after session compromise or device displacement
  • •Hardware-binding approach is conceptually solid for preventing offline decryption attacks
Weaknesses
  • •Only evidence is two unlisted YouTube videos with no code repository, documentation, or verifiable technical details
  • •No disclosure of cryptographic binding mechanism, threat model, or implementation details; impossible to evaluate claims
Category
Security
Target Audience

Security-conscious teams handling sensitive data on portable devices, high-risk environments

Similar To

BitLocker TPM binding · FileVault with hardware keys · DLP solutions like Symantec DLP

Post Description

Hi HN,

I've developed Sentinel Data, a CLI security tool designed to address a gap in standard encryption: the "authorized user, unauthorized context" risk.

Most Data Loss Prevention (DLP) systems fail when a session is already active or if a device is physically moved. Sentinel Data binds file decryption to the specific machine's hardware and environment. I created a short technical demo and an attack simulation to show how the tool blocks access when the environment is tampered with.

Technical Demo: https://youtu.be/b3HbnWWMPSY Attack Simulation: https://youtu.be/9jEPp_wEu3c

I'm looking for technical feedback on this implementation and would love to discuss the cryptographic binding logic with the community.

Looking forward to your thoughts!

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