What is security in cloud computing?
La cloud computing security refers to the set of technologies, solutions and procedures aimed at protecting data, applications and technical infrastructures. It is important because it allows protect corporate and customer data, but also to ensure business continuity. In this article, we are going to see How is cloud security organized in a concrete way and why it is essential.
Why is cloud security strategic?
La cloud security IT is essential, because this technology has become an element of business performance. Several factors explain the importance of this security of the system and the software.
The data stored by your company must be protected from attacks by malicious persons.. They may want to steal professional secrets or get their hands on users' personal data. However, certain laws such as the RGPD (General Data Protection Regulation) impose strict compliance and data protection requirements.
Let's add that one of the specificities of the public cloud is the shared responsibility between the service provider and the customer. In order to obtain a sufficient level of security, it is therefore necessary for your organization to put in place appropriate measures in order to protect itself from any potential attack.
How does shared cloud security work?
The shared security model allows Define cloud security responsibilities between the service provider and the customer. Depending on your type of cloud storage (IaaS, PaaS or SaaS) we can indeed observe significant variations.
Infrastructure-as-a-Service (IaaS)
In a IaaS cloud environment, the customer leases virtual computing resources. These can take the form of servers, storage, or networks. The customer is then responsible for operating system, data, or application security.
Platform as a Service (PaaS)
With a PaaS model, the company deploys its applications on a cloud development platform provided by a service provider. If the latter must ensure the security of the runtimes, the OS or the middleware, For its part, the customer must secure data, applications, devices and user access.
Software-as-a-Service (SaaS)
Finally, in a SaaS cloud which allows you to use an application hosted in the cloud for example, The customer must implement strict access and device control.
What are the methods to secure the cloud?
Whether you want to exploit the potential of the cloud to develop applications or to perform a professional online backup, it is essential touse best practices to minimize data threats. These take the form of five methods that we detail below.
Identity and Access Management (IAM)
IAM tools and services are used to set up protocols for all users who are trying to access services on premises or in the cloud. Identity and access management therefore makes it possible to precisely control who can access the various cloud resources and what actions they can take.
Security Information and Event Management (SIEM)
La SIEM refers to a global solution that automates the detection of threats in the cloud and the response to them. Thus, managing security information and events is a good way to collect and analyze security logs to detect any intrusions or suspicious activity in the cloud.
Data loss prevention (DLP)
To limit the risk of data loss, the services of DLP include a set of alert solutions, data encryption and preventive measures. This helps prevent sensitive data from leaving the cloud perimeter in an unauthorised manner.
Continued operations after an incident
While prevention is fundamental, it is impossible to guarantee 100% safety. For this reason, it is also essential to be able to react quickly to vulnerabilities discovered by your teams, but also to service interruptions. The establishment of a Business Resumption Plan (PRA) is the best way to restore systems and data as soon as possible.
