Enlarge (credit: Getty Images) A federal Cyber Safety Review Board has issued its report on what led to last summer's capture of hundreds of thousands of emails by Chinese hackers from cloud customers, including federal agencies. It cites "a cascade of security failures at Microsoft" and finds that "Microsoft's …

Enlarge (credit: Getty Images) Microsoft said the corporate account of one of its engineers was hacked by a highly skilled threat actor that acquired a signing key used to hack dozens of Azure and Exchange accounts belonging to high-profile users. The disclosure solves two mysteries at the center of …