The Cloud has emerged as a platform for storing large amounts of data. The Cloud services include SaaS, PaaS and IaaS that are aimed towards delivery of computing services. CityDefend extends the Cloud services by providing Searchable Encryption-as-a-Service (SEaaS). In addition to the conventional advantages of Cloud, CityDefend provides novel solutions to the security needs of enterprises and helps maintain confidentiality, privacy and trust across the enterprises. Therefore, CityDefend gives individuals and enterprises full control over their over their confidential data while being able to search and process the data.