AttacheCase 3.7

AttacheCase is a lightweight file encryption and compression utility by developer Mitsuhiro Hibara. It packages selected files and folders into a single, password-protected archive, making it easy to secure attachments, back up sensitive information, and share data safely. Designed for simplicity and speed, AttacheCase uses modern cryptography and a straightforward workflow: drag and drop to create or open an encrypted package, then enter your password to lock or unlock the contents.

Key features:

• Strong, modern encryption to protect files with a single password
• Combines multiple files and folders into one encrypted .atc archive
• Built-in compression to help reduce file size for sharing or storage
• Clean, minimal interface with drag-and-drop support
• Convenient shell/context menu integration for quick encrypt/decrypt actions
• Works offline and requires no account or cloud service

AttacheCase is ideal for anyone who needs a fast, dependable way to protect documents before sending them by email or storing them on external drives and cloud services.

AttacheCase is developed by Mitsuhiro Hibara. The most popular versions of this product among our users are: 3.2, 3.4 and 3.7. The name of the program executable file is AttacheCase.exe.