Azure Rights Management
Azure Rights Management (often abbreviated to Azure RMS) is the protection technology used by Azure Information Protection
This cloud-based protection service uses encryption, identity, and authorization policies to help secure your files and email, and it works across multiple devices—phones, tablets, and PCs. Information can be protected both within your organisation and outside your organisation because that protection remains with the data, even when it leaves your organisation’s boundaries.
As an example, employees might email a document to a partner company, or save a document to their cloud drive. The persistent protection that Azure RMS provides not only helps to secure your company data, but might also be legally mandated for compliance, legal discovery requirements, or simply for good information management practices.
But very importantly, authorized people and services (such as search and indexing) can continue to read and inspect the protected data. This capability is not easily accomplished with other information protection solutions that use peer-to-peer encryption. You might have heard this capability referred to as "reasoning over data" and it is a crucial element in maintaining control of your organisation’s data.