Protection mechanism against ddos attack intended to block account

Objective . The aim of the study is a software analysis of a cyber attack carried out to block accounts and implement protection of the protection mechanism. Method . The study is based on the use of the PHP programming language in the PhpStorm IDE environment from JetBrains. In addition to this language, the CSS and JS layout languages, the HTML markup language were used. Result . A DDoS attack of the account blocking type, its possible consequences and existing protection mechanisms are considered in detail. Also, in order to counteract the implementation of this attack, a modification of the algorithm is proposed, which can significantly reduce the likelihood of its successful implementation. The result of this work is the developed software tool and a comparative analysis with similar products on the market. Conclusion . Ready-made software solutions are analyzed and a protection mechanism is developed, which is a modern solution that provides reliable protection of user accounts and protected from attacks directed at them.