Cyberpunk 2077 game showcased in a store in Tokyo (Japan), in December 2020. -

Kazuhiro NOGI / AFP

He does not intend "neither to give in to demands, nor to negotiate".

CD Projekt RED, the Polish studio creator of

The Witcher

and

Cyberpunk 2077

video games

, revealed on Tuesday that it had been the victim of a "targeted cyberattack" and had data stolen.

"An unidentified actor obtained unauthorized access to our internal network, collected some data belonging to the CD PROJEKT group and left a ransom note," the company said on Twitter.

The incident took place on Monday.

The police have been contacted.

Hackers say they stole source codes from

Cyberpunk 2077

and

The Witcher 3

, as well as internal documents, and threatened to sell them or post them online if the ransom was not honored within forty-eight hours.

Personal data of customers saved

"Investors will lose confidence in your group and your stock will dive even lower," write the cyber hackers in their letter to the group.

On Tuesday, CD Projekt shares were listed down 5.2% on the Warsaw Stock Exchange around 9am.

They had already plunged after a series of problems with the highly anticipated

Cyberpunk 2077 release

in December, before resuming last month when billionaire Elon Musk praised its design.

"We are taking the necessary measures to limit the consequences of a potential disclosure" of data, responded CD Projekt RED, specifying: "At this stage, we can confirm that to our knowledge, the compromised systems did not contain any personal data of our players or customers of our services.

"

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