This speculation was shared by users in the comments on  SumaiL 's post on (Twitter).

Saeed <entity-link category="team" identity="892"> SumaiL </entity-link> "<entity-link category="team" identity="892"> SumaiL </entity-link>" Hassan, a player for&nbsp;<entity-link category="team" identity="1641"> Nigma Galaxy </entity-link>, might have received a lifetime VAC ban from Valve in CS2 due to the new anti-cheat system, VacNet 3.0, which the developers have implemented in the game.
This speculation was shared by users in the comments on <entity-link category="team" identity="892"> SumaiL </entity-link>'s post on&nbsp;X (Twitter).
The pro player complained that his CS2 account received a VAC ban despite not having logged into the game for several months. He reached out to Valve for help, attaching a screenshot of the blocked account. In the comments, users reminded the esports player that the developers are currently testing the VacNet 3.0 anti-cheat system to combat cheaters who have learned to bypass the old protection system.
Therefore, users advised him to contact support directly if he believes there was a mistake. There have been instances where players received bans in CS2 en masse without committing any violations.
Earlier, Ammar "ATF" Al-Assaf&nbsp;commented on&nbsp;<entity-link category="team" identity="892"> SumaiL </entity-link>'s lifetime ban from Valve.

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It has been revealed why SumaiL might have received a lifetime ban from Valve