Patent ID: 7360095

Claim:
A computer implemented method for warning of a presence of a person in a zone having an inadequate security clearance, the computer implemented method comprising: receiving a message by a selected data processing system within a plurality of data processing systems located within the zone, wherein the message comprises a security level associated with a person detected entering the zone; initiating security actions to protect data displayed on the selected data processing system, wherein initiating the security actions further comprises: identifying a security level of each window in a plurality of windows displayed at the selected data processing system; selecting at least one window in the plurality of windows on which to perform the security actions to form selected windows, wherein a window in the plurality of windows is selected to form the selected windows if a security level of the window is greater than the security level associated with the person; and performing the security actions to protect the data displayed on the selected windows while data displayed in other windows in the plurality of windows remain displayed, wherein the security actions are performed depending on a confidentiality level of the data being displayed at the data processing system; and monitoring for additional messages indicating a presence of an unauthorized person in the zone, wherein cessation of receiving messages indicates that the security actions no longer need to be taken.