Systems and methods for detecting changes in data access pattern of third-party applications

A computing system, comprising:

• a communications module communicable with an external network;
• a memory;
• and
• a processor coupled to the communications module and the memory, the processor being configured to:
• in an automated test environment:
• launch a test instance of a first application;
• and
• obtain a data access signature of the first application based on identifying at least one application state of the first application and account data retrieved by the first application from a user account at a protected data resource in the at least one application state;
• receive, from a client device associated with the user account, an indication of access permissions for the first application to access the user account for retrieving account data;
• detect a change in the data access signature of the first application;
• and
• in response to detecting the change in the data access signature of the first application, notify the user of the detected change.