Data theft is difficult to detect and can be harmful and detrimental to both you and your device user. Every device that is charged via a USB cable is vulnerable. Charging your device through a secure data blocker removes the threat of any unwanted data transfers, and without the risk of hacking or the uploading of viruses. Prior to charging your device, simply plug your charge cable into the data blocker before plugging it into the charging source. Includes standard backing card with instructions or a custom-designed backing card. Material: Wood