Microsoft and game video network Machinima are defending a recently discovered advertising arrangement between the companies, but experts say they could be facing extended trouble down the road.

Word of the partnership came out earlier this week via Ars Technica. According to leaked documents, well-known Machinima YouTube video creators were paid a bonus by Microsoft for highlighting the Xbox One in their video content. However, the terms of the agreement stipulated that Youtubers not disclose they were being paid to promote the console. In other words, they were getting paid to pimp the system but were told not to tell anybody — nor say anything untoward about the Xbox One.

Read more at Yahoo! Games