This case study talks about how Tata Communications managed to help DNV, independent expert in risk management, and recognised advisor to the maritime and oil and gas industries, set up a secure and cost-effective enterprise hybrid internet WAN infrastructure serving 15,000 employees in 325 offices across 100 countries. Tata Communications' IZO™ Internet WAN is a cost-effective and secure and consistent hybrid WAN for enterprises wishing to have secure cloud connectivity