Session hijacking is a cyberattack in which an attacker controls a user’s web session by exploiting the web session control mechanism. A session hijacking attack is also known as TCP session hijacking. A session hijacking attack compromises the web session by stealing or predicting a valid session token, enabling the attacker to gain unauthorized access to the webserver. The most session hijacking methods through which a session token can be comprised include predictable session tokens, session sniffing, client-side attacks, man-in-the-middle attack, and man-in-the-browser attack.
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