When a company with Chinese origins broke ground last year on a crypto-mining operation in Cheyenne, Wyo., a team at Microsoft that assesses national security threats sounded the alarm.
- Not only was the site next door to a Microsoft data center that supported the Pentagon — it was about a mile away from an Air Force base that controlled nuclear-armed intercontinental ballistic missiles.
The national security concerns about the Wyoming site, previously unreported, reflect a broader unease about a recent surge in Chinese Bitcoin mines across the country.