- TransNumerik
- 07/01/2025
Tackling security challenges in
a Multi-Cloud environment.
The move to the Cloud is a major evolution for businesses, improving productivity and enabling adaptation to an ever-changing business environment. However, with this transformation comes new security challenges, especially in a multicloud environment. This article explores how to overcome these challenges and ensure secure migration and operation in the MultiCloud.
What is a MultiCloud strategy?
A MultiCloud strategy MultiCloud involves using multiple cloud services Cloud from different providers to meet a company's specific needs.
It maximizes efficiency and resource optimization by selecting the best solutions available on the market. Keybenefits include: incluent:
- Cost reduction:
Exploit fluctuating pricing models to improve return on investment (ROI).
- Flexibility and agility:
Ability to run different applications on specialized platforms.
- Increased reliability:
Diversification of resources to reduce risk.
- Optimized performance:
Use the most appropriate solutions for each task.
- No vendor lock-in:
Freedom to choose and migrate between different vendors.
However, this approach involves complex and varied security challenges.
Multicloud security challenges
L’adoption du MultiCloud augmente la surface d’attaque et présente des défis clés :
Lack of visibility:
Difficulty in monitoring all resources and services.
Increased complexity:
Identity and configuration management in multiple environments.
Network management:
Need to guarantee secure connectivity between various platforms.
Loss of control:
Difficulty in protecting data distributed across multiple providers.
Multiplication of tools:
Increased complexity with each new vendor added.
Shadow SI :
Unauthorized use of PaaS or SaaS solutions, increasing vulnerabilities.
A flexible approach to security: the “Zero Trust” era
The traditional perimeter security model is no longer effective in aMultiCloud environment. The « Zero Trust » approach has emerged as a suitable solution, establishing that every access must be validated dynamically, irrespective of the user's location or device.
Les principaux avantages du « Zero Trust » dans le MultiCloud incluent :
- Identity-based access control : Centralized access monitoring and validation.
- Risk reduction : Less exposure to threats thanks to an adaptive access policy.
- Advanced telemetry : Better behavior analysis for informed decisions.
Best practices for a secure MultiCloud environment
1- Study your infrastructures:
IIdentify all cloud resources, their dependencies and connectivity. Use automation outils tools to simplify this process.
2- Define your needs:
Adapt your security strategies to industry and regulatory specificities.
3- Diversify risks:
Leverage distributed ecosystems to reduce dependency on a single supplier.
4- Automate processes:
Reduce human error by automating deployment and monitoring.
5- Categorize your resources:
Classify your workloads by criticality to apply appropriate controls.
6- Prepare a recovery plan:
Distribute resources across multiple datacenters and providers.
A MultiCloud environment offers increased flexibility and performance but requires a proactive and robust approach to security. By adopting a “Zero Trust” strategy, investing in automation tools and diversifying risk, businesses can meet security challenges while reaping the benefits of MultiCloud.
Vous souhaitez évaluer votre posture de sécurité « Zero Tust » ? 👇🏾
Source : OVH Cloud Microsoft
