Adaptive timeouts for security credentials

A computer-implemented method, comprising:

• receiving, from a client, a first request seeking access to at least one resource using at least one security credential;
• authenticating the client based at least in part on the at least one security credential;
• sending the client a session token, generated by a server, that includes a first value and a session identifier for a session initiated based in part on the authentication;
• receiving, from the client, a second request along with the session token;
• determining a badness factor, corresponding to a tolerance to incorrect information, based at least in part on a comparison of the first value of the session token and a second value that is associated with a reference computer, the session identified at least in part by the session identifier;
• determining the badness factor exceeds a threshold value, the badness factor being within a first range;
• processing the second request;
• determining a second range, based at least in part on the badness factor exceeding the threshold value, the second range having a smaller acceptable deviation than the first range;
• sending, to the client, an updated session token including an updated first value, the updated first value differing from the second value by an amount based at least in part on the badness factor.

A non-transitory computer-readable storage medium including instructions that, when executed by at least one processor of a computing device, cause the computing device to:

• receive, from a client, a first request seeking access to at least one resource using at least one security credential;
• authenticate the client based at least in part on the at least one security credential;
• send the client a session token, generated by the computing device, that includes a first value and a session identifier for a session initiated based in part on the authentication;
• receive, from the client, a second request along with the session token;
• determine a badness factor, corresponding to a tolerance to incorrect information, based at least in part on a comparison of the first value of the session token and a second value that is associated with a reference computer, the session identified at least in part by the session identifier;
• determine the badness factor exceeds a threshold value, the badness factor being within a first range;
• process the second request;
• determine a second range, based at least in part on the badness factor exceeding the threshold value, the second range having a smaller acceptable deviation than the first range;
• send, to the client, an updated session token including an updated first value, the updated first value differing from the second value by an amount based at least in part on the badness factor.