C# the eyes of a hacker. Flenov M.E.

All aspects of security from theory to real implementations of.NET applications in C#language are considered in detail. It is told how to ensure safe registration, authorization and support of user sessions. The vulnerability that can be inherent in websites and Web APIs are listed, it is described how hackers can operate vulnerabilities and how to ensure the security of the applications. The basics of optimizing the code for processing the maximum number of users are given in order to save servers and hosting resources for hosting. Network functions are considered: checking the connection, tracking the request, access to microservices, work with sockets, etc. Spended examples of hackers and ways to protect against them.