32% of enterprises experienced unauthorized access to cloud resources, and 19% were unaware if unauthorized access occurred. This was largely driven by poor enforcement of identity and access management (IAM) policies in the cloud. Unauthorized access included ex-employees, hackers, external consultants and partners, which highlights the lack of context and controls for authorized and defined users and groups within cloud environments. 80% of companies develop their own cloud governance policies internally, and 80% are taking on this challenge alone.
Source: https://www.helpnetsecurity.com/2021/03/04/unauthorized-access-cloud-resources/