What action is appropriate to reduce the risk of cookie replay attacks on Google Cloud?

Setting Google session control to a shorter duration is an effective action to reduce the risk of cookie replay attacks. Cookie replay attacks occur when an attacker intercepts a session cookie and reuses it to impersonate a user. By implementing a shorter session duration, the window of opportunity for an attacker to use a stolen cookie is minimized.

When the session timeout is reduced, users are required to reauthenticate more frequently. This limits the time an attacker can exploit the session cookie if it gets compromised. Consequently, a shorter duration enhances security by ensuring that any stolen session cookies become invalid after a set period, thereby helping to protect sensitive user data and maintain the integrity of the session.

In contrast, the other options may not provide the same level of protection against replay attacks. For instance, configuring session control to a longer duration would increase the risk, as the attacker would have a longer time frame to utilize the stolen cookie. Increasing the frequency of user authentication challenges could provide an additional layer of security, but it may lead to user frustration without directly addressing the duration of session validity. Limiting access to known secure networks could help protect against some types of attacks but does not specifically mitigate the risks associated with cookie replay. Therefore, adjusting the session duration is a targeted and