What is the purpose of the small red button on top of the SKL?

The small red button on top of the SKL (Secure Key Loader) is specifically designed to zeroize the device. Zeroization is a critical process used to securely erase all sensitive information, such as encryption keys and associated data, stored within the device. This action is essential for maintaining security, especially when the device is no longer in use or is being transferred to another user. By pressing this button, the user ensures that no residual data remains, protecting against unauthorized access.

While the other functions such as activating Wi-Fi, powering on the device, or initiating a backup may be facilitated through different controls or settings on the SKL, they are not the primary purpose of the red button. Understanding the zeroization process is vital for anyone working with secure data and cryptographic equipment, highlighting the importance of data security protocols in sensitive operations.