Sensing a presence of intrustion of digital communications for phishing attempts

A computing system for sensing a presence of intrusion of digital communications for phishing attempts, the computing system being included in an enterprise system maintained by an enterprise, the computing system comprising:

• a processor, a memory device, and a non-transitory storage device internal to the enterprise system, the processor being operatively connected to the memory device and to the storage device, wherein the processor executes computer-readable instructions of a digital communication application;
• a computer device with a display, the computer device communicating with the processor to display digital communications processed by the digital communication application and addressed to a receiving communication address associated with an employee of the enterprise;
• and
• wherein, upon execution of the computer-readable instructions by the processor, the computing system performs steps comprising:
• upon receiving a digital communication addressed to the receiving communication address, displaying the digital communication at the computer device;
• in response to selection of the digital communication displayed at the computer device via the computer device, displaying either a Check Phishing button or a submenu listing a Check Phishing action at the computer device display;
• in response to selection of the button or selection of the action via the computer device, the processor executes computer-readable instructions of a check phishing application stored in the storage device, the check phishing application, without transmitting the digital communication to an external service, performing steps of:
• comparing a displayed from address of the digital communication with a plurality of valid communication addresses in a database stored in the storage device and maintained by the enterprise, the valid communication addresses including employee communication addresses, client communication addresses, and vendor communication addresses;
• when the from address corresponds to one of the valid communication addresses, displaying a first popup window at the computer device display indicating that the from address is valid;
• and
• when the from address does not correspond to any of the valid communication addresses, displaying a second popup window at the computer device display indicating that the from address is invalid.