Multi-cloud security: Six critical challenges & their solution

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Why security in the multi-cloud needs to be rethought

Many companies are currently facing the same challenge: the integration of network and security in a multi-cloud environment is becoming mandatory and is anything but trivial.

The problems of classical approaches:

Familiar security mechanisms are no longer sufficient
Security gaps arise due to old perimeter architectures
Complexity and new threats are constantly growing

To withstand the growing threats, security must be an integral part of any network transformation from the outset. This is the only way to adapt defense measures to the complex reality of the multi-cloud world.

But this is exactly where the problem lies: with a traditional security perimeter, it becomes much more difficult to integrate the right controls into modern multi-cloud architectures. For many companies, this is already a reality and the security gaps are becoming visible.

The key question:
Which security approach is the right one when moving from a perimeter-based architecture to the multi-cloud?

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Cloud-centric operation: a security quake

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Any reassessment of security must focus on how the organization can transfer the level of control and risk management it is used to to the new multi-cloud environment.

Important aspects:

Security area is no longer in your own network, but with cloud providers → Visibility restricted
Shared responsibility model causes confusion → who is responsible for what?
Dependence on hyperscalers, which often only fix errors with top-tier licenses
Different security models with several providers → Misunderstandings and gaps

What’s more:

Increased attack surface due to flexible working hours and third-party access
Lack of cloud security expertise in the company
Overwhelmed by the multitude of security tools

The result: companies are operating in an unfamiliar environment in which it is difficult to maintain an overview.

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Six critical issues that cloud-centric security must address

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1

Comprehensive visibility

Security teams need end-to-end visibility to monitor data on the network and detect threats.

Problem:

Visibility is massively restricted in hyperscaler environments.

2

Paths through complexity

Several different environments with their own architectures, tools and controls create complexity.

High susceptibility to errors with configurations
Threats sneak through gaps between provider and company

3

Uniform security guidelines

An architecture with a standardized, centrally managed security policy is ideal.
But a patchwork of different clouds is the result:

Different standards
High complexity
Potential security gaps, especially on the public Internet

4

New levels of security flexibility

Security teams want to act proactively, leave old architectures behind and scale dynamically.

Particularly important:

Implementation of zero trust principles
Access control
Frequent re-authentication
Data protection through modern working methods

5

Straightforward administration and interoperability

Relationships with several providers and the compilation of security solutions are complex and require specialist knowledge.

Problems:

Need for simple integration and interoperability solutions
Teams under pressure with little capacity
Skills shortage in the cloud environment

6

Watertight data management and compliance

Today, cloud security also means strict regulations on the storage location of data.

Some countries require storage within national borders
Hyperscalers usually store in regional, non-country-specific zones
Even with sovereign cloud options, there is a risk of data being forwarded via prohibited areas

With increasing fines, companies want more control over where their data is stored and more security in protecting it.