Since HTTP is stateless, applications simulate an ongoing logged-in session using a token, almost always stored in a cookie, that the browser automatically attaches to every subsequent request. Everything about how that session token is generated, stored, and transmitted determines whether a login persists safely or becomes a hijacking target — a predictable token, a missing security flag, or an unbounded expiration time each turn a convenience feature into a serious vulnerability.
Analogy🏏Cricket
💪 Think of it like fitness: injuries follow a predictable chain — poor warm-up, then form breakdown, then compensation, then the actual tear — and a good physio catalogs where each patient's chain can be interrupted early, rather than only treating the tear afterward. MITRE ATT&CK is the sports-medicine literature of intrusions: a public catalog of every observed breakdown pattern, organized by the stage it serves — how attackers get in, how they escalate, how they extract. Coaches worldwide describe an athlete's risk in that shared vocabulary. This reveals ATT&CK's real value: intrusions become a sequence you can interrupt at stage two, not a disaster you discover at stage five.