Open Source ChromeOS Cybersecurity Tools

The In-Browser File Encrypter is a simple web application that enables you to securely encrypt your files directly in your browser using the AES-256 encryption algorithm in CBC mode. Check it out at: https://codepen.io/Northstrix/pen/xxvXvJL and https://northstrix.github.io/In-Browser-File-Encrypter/V1.0/web-app.html GitHub page: https://github.com/Northstrix/In-Browser-File-Encrypter The download shortcut: https://sourceforge.net/projects/in-browser-file-encrypter/files/V1.0%20%28Improved%20UI%29/V1.0%20%28Improved%20UI%29.zip/download Successfully tested in Google Chrome on Windows 11 and Fedora 40.

🚫 One tiny box. Infinite freedom. Network-wide AdBlocker and TrackerBlocker. 💼 Secure free VPN through your office or home network — remote traffic enjoys the same AdBlock protection. 🏆 Designed for corporations, freelancers, and small companies. Simple enough for home users due to its reduced price.

An experimental cloud storage service built with Next.js, featuring client-side file encryption, a dedicated password vault, advanced integrity verification functionality, and a convenient UI. Lakhash is also equipped with the password vault. Check it out at https://lakhash.netlify.app GitHub repository: https://github.com/Northstrix/Lakhash Codeberg repository: https://codeberg.org/Northstrix/Lakhash/ The related Medium article can be found at https://medium.com/@Northstrix/2be1c60ec6e8

A version of Midbar data vault adapted for the ESP32 CYD and WebFlash. It keeps the cryptographic keys in the ESP32 RAM and stores the ciphertexts (encrypted data) in the Google Firebase. The tutorial is available at: https://www.instructables.com/How-to-Turn-ESP32-CYD-Into-a-Secure-IoT-Data-Vault/ WebFlash for ESP32-CYD: https://northstrix.github.io/Midbar-ESP32-CYD-Firebase-Edition/flash WebFlash for ESP32-CYD2USB: https://northstrix.github.io/Midbar-ESP32-CYD2USB-Firebase-Edition/flash

Midbar Firebase Edition - is the edition of Midbar that stores the encrypted data in the cloud while keeping the cryptographic keys on the device! It comes with the firmware for the hardware IoT data vault and the desktop app that's synced with the vault via the Google Firebase. A vault and an app can be used without one another. The GitHub repository is available at github.com/Northstrix/Midbar-Firebase-Edition Tutorial for V1 https://www.instructables.com/DIY-IoT-Data-Vault-With-Google-Firebase/ Tutorial for V2 https://medium.com/@Northstrix/syncing-mcu-password-vault-with-desktop-app-using-google-firebase-28963e060444 Tutorial for V3 https://www.instructables.com/DIY-Advanced-IoT-Password-Vault-Synced-With-Deskto/ GitHub Repository: https://github.com/Northstrix/Midbar-Firebase-Edition

The PCS Security Technology Evaluation Tool (P-STET) is a tool funded by the I3P which allows maintainers of Critical Infrastructure systems to evaluate and compare the costs and benefits of implementing cyber security technology.

Eine experimentelle Dateifreigabe App, die mit Next.js und Perplexity entwickelt wurde und es den Nutzern ermöglicht, Dateien einfach zu teilen, zu empfangen, zu senden und erneut zu senden. Die App verwendet ML-KEM-1024, ChaCha20, Serpent-256 und HMAC-SHA512, um die Vertraulichkeit und Integrität der Daten zu gewährleisten. Außerdem ist die App mit einem speziellen Passwortspeicher ausgestattet. Schau es dir an unter: https://plum-harbor-deutsch.netlify.app/ GitHub: https://github.com/Northstrix/plum-harbor-deutsch Codeberg: https://codeberg.org/Northstrix/plum-harbor-deutsch English Version: Deployed app: https://plum-harbor.netlify.app/ SourceForge: https://sourceforge.net/projects/plum-harbor/ GitHub page: https://github.com/Northstrix/plum-harbor Codeberg page: https://codeberg.org/Northstrix/plum-harbor

SENTINEL is an open-source behavioral intelligence platform for detecting child grooming on digital platforms. Released by Sentinel Foundation in April 2026, it analyzes patterns of user behavior over time rather than scanning message content for keywords, identifying grooming sequences before direct harm occurs. Key capabilities: - Behavioral scoring across four signal types: linguistic register shifts, relationship graph evolution, temporal escalation patterns, and fairness gates - Tamper-evident audit logs (cryptographically chained, 7-year retention) for legal proceedings and regulatory compliance - Privacy-preserving federation: platforms share encrypted threat signatures without exposing raw messages or user identities - Demographic parity audits enforced as a deployment gate before any detection model goes live - Built-in compliance for EU Digital Services Act, UK Online Safety Act, COPPA, and GDPR Free for organizations under $100k annual revenue and all non-commerci

tirreno is an open-source security framework. tirreno [tir.ˈrɛ.no] helps understand, monitor, and protect your product from threats, fraud, and abuse. While classic cybersecurity focuses on infrastructure and network perimeter, most breaches occur through compromised accounts and application logic abuse that bypasses firewalls, SIEM, WAFs, and other defenses. tirreno detects threats where they actually happen: inside your product. tirreno is a few-dependency, "low-tech" PHP/PostgreSQL application. After a straightforward five-minute installation, you can ingest events through API calls and immediately access a real-time threat dashboard.