Why Cloud Network Segmentation Is Critical to Defense-in-Depth (DiD) Security Model

Cloud computing is hotter than ever before. The reason is quite simple: business organizations find it easier to integrate cloud solutions with their ongoing business operations. In addition, cloud solutions are often more cost-effective than deploying in-house servers and developing custom Information Technology (IT) enterprise tools.

According to Markets and Markets, the global cloud computing market is on track to grow from roughly $445 billion in 2021 to $947.3 billion by 2026, at a compound annual growth rate (CAGR) of 16.3%. More organizations are shifting their pivotal business activities to secure cloud networks. And the growth of innovative cloud technologies in the market adds fuel to the fire of worldwide enterprise cloud adoption.

As more organizations continue to migrate their workloads and applications to the cloud, security issues will become more prominent, requiring a dynamic solution that offers secure communication pathways between complex IT environments. Cloud network segmentation and defense in depth (DiD) security model can provide a way forward.

The Cloud Introduces Unique Security Challenges

Despite its growth and promise,  cloud computing poses many unique cybersecurity challenges. In cloud computing, data is stored with a third-party cloud solutions provider and accessed over the internet. This setup limits the visibility and control over data. Along with that, most cloud computing security risks are associated with cloud data security. A 2021 Statista survey reveals that data loss is one of the top cloud security concerns for 64% of the respondents.

On a similar note, the latest survey from Cloud Security Alliance queried 1900 IT and security professionals from a variety of organizations and found that 58% of the respondents are concerned about security in the cloud. Over 10% of the respondents reported cloud security incidents in the past year with security misconfigurations and cyberattacks such as denial of service being the most common causes.

What is Cloud Network Segmentation?

Network Segmentation is a proven network security technique that divides a network into smaller, manageable sub-networks that enable network security teams to compartmentalize the sub-networks. Once the network has been divided into smaller yet easily manageable segments, the security team can deliver high-end security tools and services to each segment.

But the common misconception is that network segmentation cannot work in the ecosystem due to the dynamic nature of clouds. This dynamic nature coupled with the unlimited scalability of the clouds attracts businesses towards cloud computing. But many believe that it has turned more complex to manage. Some believe that segmentation demands rigid policies defined by Internet Protocols (IPs), suitable for on-premises networks, but not for Software-Defined Networking (SDN). In popular opinion, smaller, structured, and secured zones never work in a dynamic environment like cloud networks.

Contrary to popular notions, today, many business organizations are implementing cloud network segmentation to enhance their cloud security and ensure compliance. It proves that network segmentation can be done in clouds, and it doesn’t need to be so rigid.

What is Defense In-Depth Security Model?

Defense-in-Depth (DiD) security model is the latest cybersecurity strategy that devises a multi-layered defensive mechanism to protect your valuable data and information. During an event of a cyberattack, if one defensive mechanism fails, the next one comes forward to prevent the cyberattack. This cybersecurity approach, with deliberate redundancies, identifies various cyberattack vectors and augments the comprehensive security of a system.

DiD is also popularly known as the ‘castle approach’ as it reminds us of the layered guarding of a medieval castle. To successfully infiltrate a castle, you must face many challenging obstacles such as moats, barricades, ramparts, drawbridges, towers, and bastions. Similarly, a hacker or malware must tackle several cybersecurity barriers to launch an attack on a network or an IT system guarded with Defense In-Depth security model.

Digital technology has stirred up the way we live, work and play. Today, almost every enterprise all over the globe is hurrying up to set its foot in the digital world. But, unfortunately, the digital world is highly vulnerable to various types of cyberattacks. On top of that, a single cybersecurity method can’t successfully protect a digital ecosystem from this plethora of cyberattacks. It is where the Defense-in-Depth security model comes into play.

Defense-in-Depth security model–a multi-layered cybersecurity approach–can significantly improve the security of every segment of IT system from a computer to an enterprise’s Wide Area Network (WAN) that accommodates 50,000 users. When an enterprise deploys different lines of defenses such as firewalls, Intrusion Detection (IDS), and Prevention Systems (IPS) together, it can effectively eliminate the vulnerability of relying on a single cybersecurity solution.

How Does Cloud Network Segmentation Support a Defense In-Depth Strategy?

Cloud network segmentation, at its heart, is a Defense-in-Depth cybersecurity approach. It can effectively reduce the risk of data breaches as it wraps layer upon layer of security around IT systems and data. This multi-layered cybersecurity strategy prevents malicious malware from spreading across every network in a business organization. It can also efficiently block hackers from quickly accessing networks and eliminate the possibility of sensitive data from being exposed.

A handful of cloud security solutions providers bring hybrid cloud security solutions like DiD that can precisely meet your business standards, requirements, and goals.

Build a Solid First Line of Defense with RedSeal

In today’s Digital Age, we witness the rising intelligent integration of cloud computing in the enterprise sphere. In this highly competitive scenario, Cloud Network Segmentation and Defense-In-Depth Security Model, without a doubt, boost the performance, security, and reliability of your network.

RedSeal gives a boost to your enterprise’s cyber resilience in a transparent yet straightforward way. We help business organizations boldly face the challenges of escalating cyber complexity and threats. At RedSeal, we help clients understand the intricacies of their network and the risks associated with it.

Visit us to know more about how our cloud security solutions can help you quickly validate your security policies and prioritize issues compromising your most valuable network assets.