My previous post on this matter was removed for breaking a rule, so I'm posting again for anyone who missed the news earlier.

Excerpt mentioning Bungie's response from the article :

Bungie responded within hours. Though it did not publicly apologize, it said it had now launched an investigation, attributing the "issue" to a former Bungie artist, and reached out to the artist concerned. "We immediately investigated a concern regarding unauthorized use of artist decals in Marathon and confirmed that a former Bungie artist included these in a texture sheet that was ultimately used in-game," the team said in a statement. "This issue was unknown by our existing art team, and we are still reviewing how this oversight occurred. "We take matters like this very seriously. We have reached out to [the artist] to discuss this issue and are committed to do right by the artist. As a matter of policy, we do not use the work of artists without their permission. "To prevent similar issues in the future, we are conducting a thorough review of our in-game assets, specifically those done by the former Bungie artist, and implementing stricter checks to document all artist contributions. We value the creativity and dedication of all artists who contribute to our games, and we are committed to doing right by them. Thank you for bringing this to our attention."