Cloud: how to outsource your data for better security?

By using the cloud, private company files are no longer stored on a hard drive. Ditching the traditional storage method for an external solution can be frightening, but it has become essential in an increasingly digitalised entity. Here is how you can secure your business data in the cloud!

Limiting accessibility to the strict minimum

Companies should always keep an eye on who is accessing their data in the cloud and who is editing it, even if the latter is stored securely. An access and identity management mechanism must therefore be added to configure access controls according to the established functions, the user’s location or even the connected terminal. This method is added to predefined groups of hirers, instead of defining access for each new employee. According to the functions linked to these groups, only the resources associated with them will be accessible. In addition, the Google cloud security tool (Cloud IAM) can mechanically identify very lax opening permissions. To do this, it readjusts the permissions in a company according to the identity of a similar user.

Ensuring end-to-end encryption

To better protect your business against leaks of confidential data, the use of encryption is the ideal method. This allows you to fight against cyberattacks more effectively, which is a fact on which the correspondence channel between the receiver and the sender is compromised. The encryption is done at the time of file creation and is a default security method that has been used for a long time. In addition, various services, such as bring your encryptions (BYOE) or bring your key (BUOK), are supplied by the providers. These offer companies the possibility of managing the encryption of data stored in the cloud themselves. It’s worth noting that there are other protection services out there such as the Key Management Service at AWS or the Google service Cloud Key Management

The automatic detection of threats

Each cloud player (security command centre at Google cloud, advanced threat protection at Microsoft Azure or GuardDuty at AWS) offers tools designed can automatically identify threats. These devices are based on machine learning and can quickly detect high-level attacks. In addition, they can identify suspicious behaviour such as an administrator account being online from another country late at night. From the customer’s point of view, the implementation of a security information and event management or SEIM in a company is ideal. This mechanism is reserved for the management of security events as well as information and can be supplied by the likes of Alert Logic, Securonix, LogPoint and Splunk.