VAC bans are always permanent.

The thing about them being lifted after a year is total fake news.

In the VAC ban information on your own profile, this is the first sentence:
VAC bans are permanent, non-negotiable, and cannot be removed by Steam Support.

So even if you thought you read something like "it can be removed after 1 year," the sentence from Valve should make it clear to you that your ban will never disappear.

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Originally posted by laaces:

VAC ban za cheaty v jiné hře – dá se někdy zrušit?
Ahoj, dostal jsem VAC ban před delší dobou, ale nebyli to cheaty do CS:GO šlo o jinou hru. Chtěl bych se zeptat, jestli je možné, že se ban po nějaké době zruší, nebo jestli je to trvalé. Četl jsem, že po roce by mohl zmizet, ale nejsem si jistý. Díky za vysvětlení.

1 VAC ban on record | Info <---
474 day(s) since last ban

go to your profile and look at the vacban. You see the "info" button, click on it, then you will see the information to the vacban. I provided below both the link and some information, Now if the ban would have been incorrect, then it would have been removed anywhere between couple hours to maybe a month or two after the ban was given, definitely not after a year, so whoever told you that or where ever you read that, lied to you.

vacban - https://steamhost.cn/help_steampowered_com/en/faqs/view/647C-5CC1-7EA9-3C29

Why was I VAC banned?
VAC bans are applied when an account, or an account using the phone number tied to other accounts, connects to a VAC-secured server while running cheat software.

Valve Anti-Cheat regularly checks the game files of all users connected to Valve's servers to ensure third party software is not being used which gives players an advantage. If software of this kind is detected a VAC ban will be issued.

Can I appeal my VAC ban?
No. VAC bans cannot be appealed. If a VAC ban is issued incorrectly it will be automatically removed after investigation, but Steam Support does not manually remove VAC bans applied to accounts for any reason.

I was not using my account when it was VAC banned. Can the ban be removed?
No. Any bans added to an account will remain regardless of who was using the account at the time the infraction occurred. Ultimately, the use and security of your Steam account are your responsibility.

While we understand this can be frustrating, we must maintain a zero tolerance policy for cheating to foster a fair game that all players will enjoy.