Session hijacking is a cybersecurity attack where an unauthorized entity gains illicit control of a legitimate user’s active session, enabling impersonation and access to authenticated resources without valid credentials. In the crypto domain, this can lead to unauthorized access to digital wallets or exchange accounts.
Mechanism
Attackers typically exploit vulnerabilities such as weak session token generation, cross-site scripting (XSS) to steal session cookies, or side-channel attacks on unencrypted network traffic. Once a session token is acquired, the attacker can utilize it to authenticate as the victim, bypassing traditional login security.
Methodology
Prevention requires a robust security architecture, including mandatory use of HTTPS/TLS for all communications, secure cookie flags (HttpOnly, Secure), strong session ID entropy, and frequent session regeneration. Implementing multi-factor authentication and continuous session monitoring for anomalous behavior further fortifies defenses against such attacks within crypto platforms.
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