Few people realize that even the electronic signature used in the Slovak eGovernment system is encrypted. The encryption key and a qualified certificate are stored in the chip of the ID card and are used to create a personal electronic signature which allows citizens to perform legal acts online. Data encryption can be used to verify the identity of citizens and protect their data at the same time. Electronic public administration systems are being introduced all over the world and require similarly high levels of security.

Cyber security experts consider encryption to be the most reliable means of data protection. The goal of cyber security is to protect the data of users of information and communication systems against cyber attacks which become more numerous with every year.