2021 Year in Review

Published on November 16, 2022

The Center for Internet Security (CIS) had a truly outstanding year in 2021. Despite the continued challenges of COVID-19, our teams excelled, in many cases exceeding the already high expectations we had set at the beginning of the year.

CIS 2021 Year in Review cover

As of June 23, 2025, the MS-ISAC has introduced a fee-based membership. Any potential reference to no-cost MS-ISAC services no longer applies.