System and method for detecting unauthorized activity at an electronic device

A system for detecting an unauthorized activity at a user device of a user, the system comprising a server communicatively coupled, via a communication network, with the user device, the server comprising:

• a processor;
• a non-transitory computer-readable medium comprising instructions;
• the processor, upon executing the instructions, being configured to:
• analyze a first request for a first web page from the user device, the first request including an original client cookie data;
• in response to the original client cookie data associated with the first request meeting a predetermined cookie data threshold:
• cause the user device, to receive a preconfigured Java Script Module (JSM) for installation thereof in a browser application of the user device, thereby enabling the user device to generate a second request for the first web page, the second request being indicative of a given activity associated with the user device, by:
• receiving server cookie data indicative of the given activity being one of:
• a user activity of the user and a bot activity;
• generating the second request including first client cookie data and the server cookie data;
• receive the second request from the user device;
• determine if the second request is to be transmitted to a web content server associated with the first web page, such that:
• in response to the server cookie data being indicative of the user activity:
• the given activity associated with the user device is identified as being authorized;
• and
• the second request for the first web page is transmitted to the web content server for requesting access to the first web page;
• in response to the server cookie data being indicative of the bot activity:
• the given activity associated with the user device is identified as being unauthorized;
• and
• the second request for the first web page is blocked.