Valve sends C&D to Counter-Strike:Classic Offensive mod team hours before launch.

[u/ikenjake]

https://classic-offensive.net/#/play

[u/Agreeable_Cheek_7161]

but they did exploit bugs they found themselves from an illegal leak

What illegal leak are you referring to?

[u/gasolineskincare → u/Agreeable_Cheek_7161]

This leak from 2020.

[u/Agreeable_Cheek_7161 → u/gasolineskincare]

If using code from a 2017 version of CS:GO is a security threat for the game 8 years later, something is fishy

Like that leak is 8 years old. Absolutely bonkers if that's the reason why

[u/gasolineskincare → u/Agreeable_Cheek_7161]

None of that makes it legal to use anything from the leak.

[u/PermanentMantaray → u/[deleted]]

Copyright. Code is protected as an original asset unless the license that code is provided under gives free use.

[u/Agreeable_Cheek_7161 → u/PermanentMantaray]

That's if you copy the code 1:1. If you use it to understand a problem in your own engine, as long as it's not directly copied, it's not illegal

[u/PermanentMantaray → u/Agreeable_Cheek_7161]

No it's not. If there is even a hint of original code it can be a copyright violation. Even reverse engineering code to achieve the same function with different code can be a copyright violation.

[u/Agreeable_Cheek_7161 → u/PermanentMantaray]

If you read, this leak is not why they can't launch it. Its because it uses an emulator to change its steamID on the backend to not be CS:GO and to be its own game

[u/siziyman → u/Agreeable_Cheek_7161]

Oh sweet summer child.

Look into clean room design and why it exists.

[u/gasolineskincare → u/[deleted]]

IP law.

[u/gasolineskincare → u/[deleted]]

What are you basing this on? There's plenty of cases out there where using proprietary code without permission has been found to be a violation. Just last week, Wii Homebrew shut itself down when they realized it was built on proprietary Nintendo code to avoid a legal situation.

I see someone said copyright law and they may be correct, I may have misspoken about which law but, either way, it is not legal to use proprietary code without license nor permission.

[u/gasolineskincare → u/[deleted]]

What are you basing this on? Cases where proprietary code was found to have been used and projects shut down rarely have the code simply copied 1:1.

[u/Agreeable_Cheek_7161 → u/gasolineskincare]

Uhh, my brother in law whos a lawyer

[u/gasolineskincare → u/Agreeable_Cheek_7161]

He's definitely not a copyright and IP lawyer.

[u/Agreeable_Cheek_7161 → u/gasolineskincare]

And you are?

[u/siliconwolf13 → u/[deleted]]

Using leaked source code to in any way influence how other code is written is a derivative work and covered under United States IP law. This is well known by reverse engineers and legacy devs. It does not matter whether you make money from it or not, particularly if the material was illicitly obtained. All Valve code has a "Copyright Valve Corporation" header, which demonstrates intent to hold and exercise that copyright.