1. A computer program product for triggering responses based on computer data transmissions received at a computer network node, the computer program product comprising: a computer-readable, tangible storage device; first program instructions to determine type, destination, and origin of data contained in the computer data transmissions; second program instructions to modify variable for triggering responses based on the type, destination, and origin of the data contained in the computer data transmissions originating from one or more suspect computer nodes comprising workstations; third program instructions to trigger a first response in response to said modified variable equaling or exceeding a first predetermined threshold level; and fourth program instructions to trigger a second response in response to said modified variable equaling or exceeding a second predetermined threshold level, wherein the first, second, third, and fourth program instructions are stored on the computer-readable, tangible storage device.