Systems and methods of secure data exchange

Improved capabilities are described for securely viewing, and collaboratively working on, computer data content, such as documents, presentations, spreadsheets, emails, blog entries, texts, and the like, wherein a secure exchange server is controlled by an intermediate business entity, and access to restricted computer data content is granted to a plurality of users comprising a user of a second business entity and an anonymous user. The second business entity may indicate permissions to the secure exchange server for the anonymous user to access the computer data content through an anonymous information rights management (IRM) facility which limits retention of information about the anonymous user. The indication of permission also comprises an anonymous access condition. Other embodiments describe a federated search facility, a data management facility distributed over several data management sites, an encryption management facility, a data chunking facility, an asynchronous upload messaging facility, managing a plurality of identities, multifactor authentication, determining a level of access authentication.