The 0x87e107df error on Xbox shows a verification issue with digital games, often due to network outages.

Xbox users worldwide are reporting service disruptions and the 0x87e107df error, preventing many from launching digital games ...

Pakistan, July 27 -- Thousands of Xbox users experienced service disruptions on Monday after a widespread outage prevented ...

Following on from Sony's PSN downtime on Friday, Xbox Network (which we all still call Xbox Live) is having its own troubles, ...