Atlassian has published the following security statement for providing cloud services that you can find at the following link: https://www.atlassian.com/trust/policies/cloud-security
Sketch for Confluence is hosted and managed within Amazon’s secure data centers and utilizes the Amazon Web Service (AWS) technology. The Amazon servers are located in Germany.
Amazon has published security statements that you can find at the following link: https://aws.amazon.com/security
Neither employees of Old Street Solutions Ltd. nor any other party is able to access the content of your Confluence pages or any other your information except the information provided by the Atlassian Marketplace.
Effective as of 19th May 2019.