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INTRUSION NEWS RELEASE INTRUSION Reports Third Quarter 2021 Results 11/11/2021 Shield revenue represents 13 % of total consolidated revenue up from 7 % in the prior quarter PLANO , Texas , Nov. 11 , 2021 ( GLOBE NEWSWIRE ) -- INTRUSION , Inc. ( NASDAQ : INTZ ) , a provider of cyberattack prevention solutions , including zero - days , announced today financial results for the third quarter ended September 30 , 2021 . Recent Financial & Business Highlights • Third quarter revenue of $ 1.8 million was up 14 % over the prior year • Shield revenue represented 13 % of total revenue in the quarter , up from 7 % in the prior quarter • Top Shield customer , Lippert Components , accelerated deployment across its global workforce • Added five new Shield customers during the quarter varying in size • Received further validation of Shield's efficacy to protect against contemporary cyberattacks from three separate cybersecurity evaluation firms Third Quarter Financial Results Revenue for the third quarter 2021 was $ 1.8 million , compared to $ 2.0 million for the second quarter 2021 and $ 1.6 million for the third quarter 2020 . Gross profit margin was 62 % of revenue in the third quarter 2021 , compared to 63 % for the second quarter 2021 and 59 % for the third quarter 2020 . Operating expenses in the third quarter 2021 were $ 7.2 million , compared to $ 6.9 million for the second quarter 1