ShieldNet 360

Security Open Source Projects from ShieldNet 360

Security made simple.

ShieldNet 360 is a cybersecurity suite for small and medium businesses. It integrates baseline controls and automation into workflows teams already run, so security doesn't require heavy tooling or an in-house team to operate.

The open-source security (OSS) project extends ShieldNet 360's core principle — security made simple — into AI-embedded workflows. It is a self-hosted toolkit that adds independent security checks at the point of egress.

Engineering and vibe-coding teams operate on AI copilots and low-code platforms without exposing proprietary data through prompts, commits, or public deploys, and without shipping flaws introduced by AI-generated code. Each module installs a default protection layer, runs policy checks at the source, and writes audit logs on demand — without blocking developer pipelines.

Data leakage prevention is one capability within a broader 360° suite that also covers threat detection, access control, and network security. The ShieldNet 360 repo is the developer-facing, self-hosted module — the rest of the suite is cloud-managed and aimed at SMB owners and operators.

ShieldNet 360 is built to make cybersecurity simple and human. Our solutions are easy to adopt, deliver proven results, and support SMBs in expanding their businesses without trading off risk tolerance.

Integrates with the tools you already run — AWS, GCP, Microsoft 365, Google Workspace, and Kubernetes.

Prompt Gate — the open-source DLP agent, browser extension, and desktop app.

It blocks unauthorized AI tools at the DNS layer and inspects content sent to approved tools through a multi-layer detection pipeline, all on-device.

• 163 real-world secret patterns across 13 categories — AWS, GCP, Azure, GitHub, OpenAI, Stripe, Slack, PEM keys, JWTs, and PII.
• Adversary-resistant matching — normalizes away homoglyphs, zero-width characters, and base64 encoding that humans and LLMs use to sneak a secret past a regex.
• Zero data persistence — only aggregate counters and policy ever touch disk. No URLs, domains, IPs, or match contents are ever logged. (privacy & data handling)
• Cross-platform — macOS, Windows, and Linux.

go install github.com/ShieldNet-360/prompt-gate/agent/cmd/prompt-gate@latest

Or grab a signed installer from the latest release.

We welcome contributions — new detection patterns and domain lists are a great first PR. See the contributing guide and report security issues responsibly.