Session hijacking

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[Session hijacking](https://pushsecurity.com/solution/stop-browser-based-attacks/session-hijacking) is the theft of an authenticated session — usually via stolen session cookies or tokens — letting attackers walk past passwords and MFA into a live account. AiTM phishing kits and infostealers have made it a mainstream attack technique across both criminal and targeted intrusions. Push’s browser agent detects session token theft by adding telemetry to the user agent string, creating a high-fidelity signal for security teams.