[chmod775]

> So they were a kind of fake.

They were not. Not even "kind of". For them to be fake they'd need to be made out as something they are not[1]. The companies who acquired those certificates just weren't aware that certificates from that particular branch weren't permissible under SK rules - likely not even authorities in SK were aware until they had a closer look.

As an analogy, a driver's license from one country may not allow you to drive a car in another, but that doesn't mean it's a fake license.

[1] Edit: Some outlets claim there were fabricated test records, if that is true and not just journalists writing whatever, then they would be indeed fake.