Abstract: A method and system to regulate a digital security system that controls access to a resource is disclosed. The system controls access to the resource according to a multi-level security protocol including a high-security-level access protocol and a low-security-level access protocol. The regulation method and system are configured to collect data from a set of user-data sources with which the user interacts during his daily life and, based on the collected data, to compute security parameters characterizing user activity. The computed security parameters are compared to a digital profile that models the characteristic behavior of this user. When the comparison indicates that the observed user activity is inconsistent with the digital behavior profile, the digital security system is regulated to set (or maintain) it in an operating state such that, when the user requests access to the resource in the future, the system will automatically implement the high-security-level access protocol.