s2underground is a former us army intel analyst who posts open source intelligence content on youtube, X (formerly Twitter), and his pateron page.
Etymology: Meaning of S2 Underground (why he uses that username).
Links for S2:
X (twitter): https://x.com/s2_underground
(easiest way to contact him)
Youtube: https://youtube.com/@s2underground
(most of his videos are here)
Patreon (Support S2 Financially): https://www.patreon.com/user?u=30479515
Instagram: @s2_underground_3
Telegram: https://t.me/s/s2_underground_project