This week, Amazon was awarded a $10 billion National Security Agency (NSA) cloud contract. Because of course it is.

After all, Amazon fought, and fought, and fought when Microsoft was awarded a Joint Enterprise Defense Infrastructure (JEDI) contract that was also worth $10 billion. And Amazon, in a crazy twist, actually got that contract overturned, despite the Pentagon affirming—twice—that it would stick with Microsoft.

News of Amazon’s $10 billion contract with the secretive NSA was first reported by Nextgov. Apparently, the contract is codenamed “WildAndStormy,” and it’s the second multi-billion-dollar cloud contract the agency has awarded in the past year. The first was something called Commercial Cloud Enterprise, or C2E, which was awarded to five companies: Amazon, Google, IBM, Microsoft, and Oracle.

But WildAndStormy was awarded only to Amazon. And so Microsoft is contesting the win after being notified by the Government Accountability Office that it had gone to Amazon AWS.

“Based on the decision, we are filing an administrative protest via the Government Accountability Office,” a Microsoft statement explains. “We are exercising our legal rights and will do so carefully and responsibly.”

The NSA confirmed the award and Microsoft’s complaint, but without naming names. So secretive!

“NSA recently awarded a contract for cloud computing services to support the Agency,” an NSA statement reads. “The unsuccessful offeror has filed a protest with the Government Accountability Office. The Agency will respond to the protest in accordance with appropriate federal regulations.”