The Information Security Manual (ISM) is updated regularly. Below is a list of previous updates in downloadable zip files covering the last 24 months. ISM June 2022 (June 2022) 47.22 MB .zip ISM March 2022 (March 2022) 48.16 MB .zip ISM December 2021 (February 2022) 48.55 MB .zip ISM September 2021 (September 2021) 52.52 MB .zip ISM June 2021 (June 2021) (June 2021) 53.08 MB .zip ISM April 2021 (April 2021) 52.86 MB .zip ISM March 2021 (March 2021) 53.26 MB .zip ISM February 2021 (February 2021) 53.84 MB .zip ISM January 2021 (January 2021) 54.01 MB .zip ISM December 2020 (December 2020) 54.03 MB .zip ISM November 2020 (November 2020) 53.80 MB .zip ISM October 2020 (October 2020) 54.04 MB .zip ISM September 2020 (September 2020) 53.67 MB .zip
