Ddanzi Group, well-known for one of its services, The Ddanzi Ilbo, transferred all of its services to Windows Azure early in 2013. The Group's decision to adopt the cloud solution came from its ever increasing numbers of listeners and emerging security threats. The Group was unfortunately unable to handle either the increasing traffic loads or the threats. The result was a service interruption that lasted nearly one month. Having learned valuable lessons from the incident, the Group chose Windows Azure as a way to deal with both the traffic and security attacks effectively. It began the transition with its online shopping mall DdanG Mall by relocating it to Azure in the latter half 2012.