Secure Your Raspberry Pi Against Attackers

You can use Raspberry Pi boards for all kinds of automation and information gathering projects. But, if you are not careful, your little hobby project might result in a security risk that acts as an entry point into your network. They can’t perform secure booting such as ARM Trustzone, and the SD card and operating system are not easily encrypted. Follow these security tips to safeguard your Pi and other devices on your network.

https://makezine.com/2017/09/07/secure-your-raspberry-pi-against-attackers