In the age of heightened public cloud adoption and widespread cloud Software-as-a-Service (SaaS) usage, cybercriminals are making use of OAuth – a permissions delegation and authorization protocol – to compromise cloud environments. As such, controlling which applications users interact with has become a business imperative. Let’s take a closer look at what OAuth is, the role it plays in allowing users to access resources across environments, the ways attackers are abusing OAuth and what organizations can do to better protect their cloud data.