Of 18 products tested, Defender had the highest system impact performance, and the only product to earn the 1 star performance rating. https://www.av-comparati

Of 18 products tested, Defender had the highest system impact performance, and the only product to earn the 1 star performance rating. https://www.av-comparatives.org/tests/performance-test-october-2018/ https://www.av-comparatives.org/tests/performance-test-octob...