On Thursday, Amazon Web Services (AWS) announced it had become the first cloud vendor to obtain provisional authorization from the Department information Systems Agency (DISA) to handle DISA data requiring levels 3-5 security clearance under the DISA Cloud Security Model (DISA CSM). Because AWS had already achieved authorization to manage data for levels 1-2 security clearance as of March, Thursday’s announcement means that AWS can now handle all unclassified data given that level 6 security clearance applies to classified data. The DISA CSM imposes even more restrictions on cloud-based data than the FedRAMP certification program. Department of Defense Agencies can now leverage the capabilities of the AWS GovCloud more quickly given the expanded scope of its authorization to handle a greater range of unclassified data. As the very first cloud vendor to obtain DISA clearance for levels 1-5 of unclassified data, AWS stands poised to strengthen its market share advantage in the battle for government-based cloud services given its receipt of a hotly contested contract for $600M and leadership with respect to obtaining FedRAMP certification.