MongoDB Enterprise Advanced is being used by Ogilvy & Mather to support their core auditing application, which captures authentication and authorization activities of all users accessing their systems. The application provides fine-grained visibility into user activity, allowing the company's support, compliance, and security teams to enforce security policies and monitor system usage. A sharded MongoDB cluster in three data centers across two continents is being used to support local writes with read-anywhere access, enabling the company to achieve continuous availability and minimize network latency. Ogilvy & Mather has built a write-heavy application that ingests tens of gigabytes of data every day from tens of thousands of users distributed globally, using MongoDB's aggregation pipeline to roll up key metrics in real-time. The company chose MongoDB based on technical maturity, community size, and support quality, and is planning to upgrade to the latest MongoDB 3.2 release later this year to take advantage of new features such as document level concurrency control, encrypted storage, and enhanced aggregation pipeline capabilities.