"Data of 400 Million Twitter users up for sale. A threat actor is claiming they have obtained data of 400,000,000 Twitter users and is offering it for sale."
I've checked the samples he posted on https://breached.vc - it looks legit.
https://securityaffairs.co/wordpress/139993/data-breach/twitter-400-million-users-leak.html
CounterSocial is the first Social Network Platform to take a zero-tolerance stance to hostile nations, bot accounts and trolls who are weaponizing OUR social media platforms and freedoms to engage in influence operations against us. And we're here to counter it.