System and method for gathering data for detecting fraudulent transactions

A system for gathering fraud detection information, the system comprising:

• an identification echo service server having at least one processor and a memory, wherein the identification echo service server is configured to:
• detect an identifying characteristic of a connected client device;
• and
• transmit the detected identifying characteristic to the connected client device;
• and
• a web server having at least one processor and a memory, wherein the web server is configured to:
• transmit a web page to the connected client device, the web page containing an instruction to the connected client device to execute a fraud detection applet that connects the client device to the identification echo service server, the fraud detection applet configured to communicate with the identification echo service server using a port not associated with web page transmissions;
• and
• receive the detected identifying characteristic from the connected client device.

A server, comprising:

• one or more processors;
• and
• memory having computer-executable instructions stored thereon that, in response to execution by the one or more processors of the server, cause the server to perform actions including:
• transmitting a resource to a client device, wherein the resource includes an instruction to the client device to execute fraud data gathering code;
• and
• receiving fraud detection data from the client device, wherein the fraud detection data includes an identifier of the client device obtained by the fraud data gathering code that was executed by the client device, wherein the fraud detection data was obtained from a second server with which the client device established a connection as a result of executing the fraud data gathering code, the fraud data gathering code configured to communicate with the second server using a port not associated with web page transmissions.