Intrusion Inc. revenue for the last year amounted to 5.61 M USD, the most of which — 5.61 M USD — came from its highest performing source at the moment, Network Security Systems, the year earlier bringing 7.53 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Intrusion Inc. 5.61 M USD, and the year before that — 7.53 M USD.