Microsoft clearly made this to be a Scribd alternative. O365 defaults to private sharing everywhere. To quote from the article, "Office 365 and Azure Tenant adm

Microsoft clearly made this to be a Scribd alternative. O365 defaults to private sharing everywhere. To quote from the article, "Office 365 and Azure Tenant administrators must 'opt-in' to enable users with organizational accounts to use the service". On https://docs.com/docscom https://docs.com/docscom the description of the service is "Docs.com by Microsoft is an Internet site for publishing Office documents that anyone can find, browse, and share". The only way this could be clearer is if the word 'anyone' was changed to 'anyone in the world'. Finally, (for some license types) O365 offers precisely the kind of DLP capabilities that would let users use such a service while blocking the sharing of SSN's etc. For business accounts, not only has someone actively turned on this capability, they have then failed to communicate its purpose to users. The users themselves have then failed to understand what they were doing. I'm sorry, but while I can sympathise with people this is clearly not MS' problem. For the record, my current employer (a university) has not enabled this function.