Author: Мавлянова, Лола Тахировна

Annotation: The Internet can be rightfully called the main component of the 21st century. The global network has become worldwide, not only covering its web all continents and countries, but also penetrating into every sphere of life. Over the Internet, questions are solved, ranging from the order of pizza in the nearest cafe, ending with multimillion transactions. This territory very quickly began to attract fraudsters. Therefore, there is a question about information security.

Keywords: Information security, internal and external threats, authentication, spoofing, cryptography, symmetric encryption, firewall, electronic digital signature.