What are the hardware ways to protect information?

Information security hardware can be roughly divided into three types:

Devices that store protected information.
Devices that mask information, preventing potential attackers from obtaining it.
Access protection devices.
Secure storage devices are special drives that encrypt the data stored on them.

For example, a special USB, the data on which is encrypted with a secret key that only the owner knows.

Information masking devices usually create noise or are a surge protector. Their goal is to keep an intruder out of the system or to make his work in the system impossible.

Access protection devices do not allow access to data without authorization, for example, it can be a system that reads a fingerprint before starting to work with a computer.