Everything as a Service (XaaS) has taken the cybersecurity field by storm, with enterprise organizations outsourcing security and development functions to third parties, including Software as a Service, Artificial Intelligence (AI) as a Service and even Ransomware as a Service. The Deloitte Everything as a Service (XaaS) Study further examines the service model.
https://www.securitymagazine.com/articles/97135-everything-as-a-service-cybersecurity-risks-of-outsourcing