Network and device security system, method, and apparatus

A system for providing security to user-entered inputs, the system comprising:

• a hardware security device that is communicatively coupled between an input device and a processor of a user device, the security device being configured to:
• receive a string of characters from the input device that correspond to inputs made by a user into a web browser or application on the user device that is in communication with an application server,
• add at least one security character to the string of characters to generate a watermark string, and
• transmit the watermark string to the user device,
• wherein the security device is configured to format the at least one security character such that only the string of characters are displayed in the web browser or the application at the user device;
• and
• a security server communicatively coupled between the user device and the application server, the security server configured to:
• receive the watermark string from the user device,
• use at least one rule to identify the at least one security character within the watermark string,
• compare the at least one security character to one or more security rules,
• remove the at least one security character from the watermark string, and
• enable the application server to receive the string of characters for processing if the at least one security character matches at least one security rule.