ATLOCK icon
ATLOCK icon

ATLOCK

Enforces non-bypassable full-screen system lockdowns with customizable durations, NTFS-integrated file protection, and a locally encrypted password vault. Includes anti-tamper security, logs intrusions, offers emergency modes, and uses zero cloud telemetry for privacy.

Upto 8hrs Device lock
File guard
+1
Vault

Cost / License

  • Free
  • Open Source

Platforms

  • Windows
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ATLOCK was added to AlternativeTo by Akhouri-Anmol-Kumar on and this page was last updated .
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What is ATLOCK?

ATLOCK: Total Security Suite ATLOCK is a lightweight, low-level system lock, file guardian, and local password vault built for Windows. Operating under a minimalist cyber-defense framework, it combines native OS hardening with advanced local cryptography to provide non-bypassable temporary lockdowns and robust data protection. It acts as an un-bypasable digital barrier that cannot be shut down or minimized once engaged.

Key Features ? Total System Lockdown: Freezes user interaction with a high-performance, full-screen overlay covering all active apps. Lock durations can be configured from 10 minutes up to 8 hours. Includes a one-time emergency feature to halve the remaining lockout window.

🛡 Windows NTFS ACL File Guard: Binds directly to the Windows NTFS Access Control List (ACL) to deny read, write, and execute permissions to all users (including owners and admins). Silent background polling threads trigger identity verification loops if access is detected. Unlocking grants a temporary 30-second access path before re-locking.

🔑 Encrypted Password Vault: Stores credentials locally using XOR + SHA-256 key expansion. After 3 invalid verification attempts, it triggers soft alerts; a 4th incorrect attempt initiates a strict 10-hour app lockout. It logs intruder timestamps and payloads, purging them after 24 hours.

🔒 System Anti-Tamper: Hooks directly into user32/kernel32 to intercept and drop crucial navigation commands (Alt+Tab, Win Key, Alt+F4). It constantly tracks tasks, executing immediate high-priority terminal kills (taskkill /F) on diagnostic utilities like taskmgr.exe, procexp.exe, and processhacker.exe.

Technical Specifications Developer: Akhouri Anmol Kumar (Akhouri Systems)

Core Architecture: Python / CustomTkinter / Native Windows Win32 API Interop (pywin32, ctypes)

Platform Support: Fully hardened optimization for Windows, featuring graceful structural fallbacks for macOS (Darwin) and Linux.

Storage Framework: 100% localized, isolated JSON configuration trees with zero cloud telemetry or tracking.