USING MOCK TOKENS TO PROTECT AGAINST MALICIOUS ACTIVITY

A technique provides protection against malicious activity. The technique involves providing a mock token to fraudster equipment. The mock token appears to be a legitimate user token that identifies a legitimate user (e.g., an actual user token, a token seed, etc.). The technique further involves receiving, from the fraudster equipment, an authentication request which uses the mock token and, in response to receiving the authentication request which uses the mock token from the fraudster equipment, performing a set of authentication server operations to protect against future activity by the fraudster equipment (e.g., deny access to the fraudster equipment, acquire specific information about the fraudster equipment, output a message to subscribers of an eFraud network, and so on).