Method of and system for processing an unauthorized user access to a resource

A server comprising:

• a communication interface for communication with an electronic device via a communication network,
• a processor operationally connected with the communication interface, the processor configured to process a potentially unauthorized user access request, the processor being further configured to:
• receive a first session identifier associated with a first communication session associated with a user account;
• receive a second session identifier associated with a second communication session associated with the user account, the second communication session being active concurrently with the first communication session;
• based on user behaviour within the first communication session, generate a first user behaviour model associated with the first communication session;
• based on user behaviour within the second communication session, generate a second user behaviour model associated with the second communication session;
• responsive to one of the first user behaviour model and the second user behaviour model being different from a stored authorized user behaviour model associated with the user account, restrict user activity within the respective one of the first communication session and the second communication session;
• and
• allow unrestricted user activity within the other one of the first communication session and the second communication session.