Preventing Hijacking

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Q: In this style of hijacking, the authentication check is executed only when a session is open. A hijacker who effectively launches this attack will be able to control a connection throughout the session’s duration. After successfully stealing the session cookie, an attacker can masquerade as a user or hijack a session throughout its lifetime. Which of the below countermeasures would be useful in preventing this type of hijacking?


a. Ignore unknown or suspicious links sent through email or instant message.

b. Regenerate the session cookie once a browser session has closed.

c. Decrease the cookie’s life span.

d. Regenerate a session ID after a user has logged in.

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