[Karl Lunt] has come up with a simple circuit for protecting data you have stored on SD cards. As is relatively well-known, the little lock switch on the side of most SD cards really doesn’t do ...

USB Write access or USB Write protection is the security feature that can be enabled for any USB Data storage. The main purpose of enabling USB write access is to maintain the integrity of USB data ...

Copying, moving, or deleting files on a USB drive is usually straightforward. However, this may not be the case if the USB ...