Once again we return to the subject of Cloud Computing and outsourcing the storage of data.
Before you enter into a contract with a Cloud Computing provider and start to upload your data, you should at least consider these areas of concern:
· Where is the data stored? Because you are uploading data via the internet you are unlikely to know where your data is being hosted. Ask the provider where the data centers are located – in your own country or overseas.
· Who has access to your data? – Privileged users are likely to be able to access your data because they are able to bypass the physical, logical and personnel controls. Ask your provider what security vetting they carry out on the privilege access staff and what monitoring of their access is conducted.
· Data Segregation - Data in the cloud is typically in a shared environment alongside data from other customers. Find out how your provider segregates your data from that of other clients. Is data encrypted on their servers?
· Regulatory compliance – You are ultimately responsible for the security and integrity of your own data, even when it is held by an outsource provider. Cloud providers should be subjected to external audits and security certification, i.e. ISO/IEC 27001:2005. If your provider cannot provide evidence of audits and certification, look for someone who does.
· Business Continuity & Data Recovery – Who do you know that your data will always be available when you want to access it? What provisions has your provider made for business continuity and data recovery? How long will this take? Do you have local backups of the data you have stored remotely?
· How will you access your data if your Internet connections fail? – Access to your data is reliant upon your being able to access the Internet. It is quite common for Internet connections to fail and sometimes this can takes days before the connectivity is restored. Once again, Do you have local backups of the data you have stored remotely?
· Computer forensics support - Investigating inappropriate or illegal activity may be impossible in cloud computing! The analyst firm Gartner warns, “Cloud services are especially difficult to investigate, because logging and data for multiple customers may be co-located and may also be spread across an ever-changing set of hosts and data centers. If you cannot get a contractual commitment to support specific forms of investigation, along with evidence that the vendor has already successfully supported such activities, then your only safe assumption is that investigation and discovery requests will be impossible."
· What is the long-term viability of the provider? – If your provider were to “go bust”, how would you be able to recover your data? What if the outsource provider were to be acquired by another company; would the provisions you have already contracted (especially those relating to location, access and security be retained).
Users of Cloud Computing Services need to understand the potential risks to their data. They should ensure that the fundamental principles of Information Security are maintained:
· Confidentiality - Ensuring that information is accessible only to those authorized to have access
· Integrity - The assurance that data has not been changed inappropriately, whether by accident or deliberately malign activity.
· Availability – Ensuring that data is available to access whenever it is required.