Cloud-based enterprise resource planning, document management and security apps ranked highly in a new study of cloud security conducted by apps analytics and security policy startup Netskope. The company's new cloud report which analyzed more than 2,700 cloud apps, found the top providers had the best controls in place for identity and access control, file sharing, data classification and encryption. Auditing and alerting capabilities are also very strong, giving them high schools, Netskope said. The worst performers were typically software development, marketing and productivity apps. Categories that have a high number of fledgling providers, the company said. Here are the five top performers that introduce the least risk to the enterprise.