Dallas-based cloud-security firm Stackpath has bought a Florida company backed by more than $200 million in debt financing. The company announced its acquisition of the content delivery network (CDN) provider Highwinds, the latest company brought aboard to scale Stackpath toward a CDN market that could nearly quadruple to $23.2 billion by 2021, according to Markets and Markets. Terms of the deal were not disclosed. With the acquisition, the company now has more than 300 employees and 20,000 CDN...