One source said the latest executive departures appear to be part of a push to integrate Dimension Data further into NTT, which acquired Dimension Data in 2010 for $3.2 billion. Some divisions of Dimension Data already have publicly been integrated with NTT and other portfolio companies, most notably the company's security divisions. In August, NTT said it was bringing together its subsidiary security brands, including Solutionary, and parts of Dimension Data and NTT Communications, into a single managed security services company called NTT Security.