Movement dedicated to countering Russian propaganda and disinformation about the 2022 Russian invasion of Ukraine.[1][2][3][4] It has been categorised as a form of information warfare.
https://en.wikipedia.org/wiki/NAFO_(group)
https://www.youtube.com/watch?v=gCOZwbWEJmo

La guerre invisible Docs ARTE (histoire de la Cyber Guerre)
https://www.youtube.com/watch?v=FOH4gwF4ukk

Et aussi
https://korben.info/category/infos/securite
https://www.journalduhacker.net/
https://www.cert.ssi.gouv.fr/