Multi-cloud security

In the ever-expanding digital landscape, where organisations are increasingly embracing the transformative power of the cloud, the security of sensitive data and critical applications is paramount. The complexity of safeguarding against cyber threats is becoming ever more intricate. At Proxar IT Consulting, we not only recognise this evolving challenge, but stand at the forefront of cutting-edge cybersecurity solutions tailored for the nuances of private, public, hybrid, and multi-cloud ecosystems.

In this article, we’ll explore the realms of cloud security and share our distinct approach to securing your business’ digital infrastructure. From private clouds offering exclusive control to public clouds demanding scalable protection and the hybrid environments bridging the best of both worlds, we meticulously design our solutions to address the unique security considerations of each setting. 

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Why does cloud security matter? 

The cloud plays a critical role in modern business operations. As organisations increasingly migrate sensitive data, applications, and infrastructure to cloud environments, the stakes for safeguarding against cyber threats are escalating. Failing to prioritise cloud security can lead to severe consequences, including data breaches, financial losses, reputational damage, and legal liabilities.

Getting your cloud security right means ensuring the confidentiality, integrity, and availability of your digital assets while protecting against unauthorised access, data breaches, and service disruptions. Yet the dynamic and interconnected nature of the cloud means that a robust security framework can be hard to come by – especially when you consider the different types of cloud solutions on the market today. We’ll explore each of these in turn, considering private cloud, public cloud, and hybrid cloud environments, and the unique cybersecurity challenges posed by each.   

Private cloud security by Proxar

Private clouds are computing environments dedicated solely to a single organisation, providing exclusive access to computing resources and services within a secure and isolated infrastructure. Unlike public clouds, private clouds are typically hosted on-premises or by a third-party provider exclusively for the organisation’s use.

Are private clouds cybersecure? 

Private clouds give your business exclusive control over your infrastructure. But with great power comes great responsibility.

The responsibility for implementing, updating, and maintaining security measures is now yours alone. This decentralised control increases the likelihood of oversight, misconfigurations, or delays in applying critical security patches, not to mention the nuances of on-premise nature. As a result, your overall security posture can become more susceptible to vulnerabilities. 

The high stakes and sole responsibility lead many businesses to opt for managed private clouds. By outsourcing private cloud management, you can leverage the expertise of specialised providers, reduce operational overhead, ensure continuous security updates, and benefit from economies of scale in infrastructure maintenance and optimization.  

Proxar’s approach to private cloud management

Here at Proxar, we recognize the importance of tailoring security measures to align with the distinctive characteristics of private cloud environments. This involves a meticulous focus on access controls, encryption protocols, and network segmentation to ensure that only authorised entities have access to sensitive data and applications.

We implement a multi-layered security architecture within private clouds. Data encryption, both in transit and at rest, safeguards against unauthorised access. Meanwhile, access controls are enforced with precision, limiting permissions based on user roles and responsibilities. Finally, network segmentation ensures that even in the event of a breach, the lateral movement of threats is restricted, minimising potential damage.

Public Cloud Security Strategies

In comparison to private clouds, the public cloud is a type of computing service where computing resources, such as servers, storage, and applications are provided over the internet by third-party providers. These services are made available to the general public, and users can access and use them on a pay-as-you-go basis.

While this approach brings many benefits such as scalability, flexibility, and cost-effectiveness, it also carries with it unique cybersecurity requirements. 

Inherent Challenges of Public Cloud Security

Public clouds introduce unique challenges stemming from shared infrastructure, diverse user access, and the potential exposure to a wide range of cyber threats. Let’s explore some of these challenges in more depth. 

  1. Data Privacy and Compliance: Public clouds often operate across different regions and jurisdictions, raising concerns about data residency, sovereignty, and compliance with varying regulations. Ensuring that sensitive data complies with local and international laws becomes a complex task.
  2. Limited Control: Businesses using public cloud services have less direct control over the physical infrastructure and security measures. This lack of control can be a challenge for organisations with stringent security requirements or specific regulatory mandates.
  3. Multi-Tenancy Risks: Public clouds are inherently multi-tenant environments, meaning multiple users and organisations share the same underlying infrastructure. This introduces the risk of unauthorised access, data leakage, or cross-tenant vulnerabilities if security measures are not robust. This is particularly true where one public cloud customer fails to adequately protect their own data and applications, leading to a shared security gap. 
  4. Network Security: The reliance on the internet for data transfer and communication introduces potential vulnerabilities, such as interception or man-in-the-middle attacks. Securing data during transit and ensuring the integrity of network connections are critical concerns.

Proxar’s Solutions for Public Cloud Security

Encompassing a comprehensive set of measures, our tried-and-tested approach to public cloud security centres compliance and data protection strategies. We integrate advanced encryption protocols to protect data both in transit and at rest, stringent access controls tailored to the principle of least privilege, and continuous monitoring for rapid threat detection and response, across all our security solutions as standard. 

We also recognise the importance of meeting the UK compliance requirements for public cloud environments, and place a strong emphasis on offering solutions that facilitate adherence to region and industry-specific regulations. 

With this approach, we empower our clients to harness the benefits of public clouds without compromising on the confidentiality and integrity of their digital assets.

Securing the Best of Both Worlds: Hybrid Cloud Security

As the name suggests, hybrid cloud architectures combine the strengths of both private and public clouds. Seamlessly integrating on-premises infrastructure with public and/or private cloud services, the hybrid model is a versatile solution that promises both agility and flexibility. Many businesses favour a hybrid cloud solution, yet many in-house IT departments are still catching up to the unique cybersecurity requirements of this model. 

What are the security challenges of hybrid cloud? 

As you might expect, navigating the intricate landscape of hybrid cloud security is no easy task. Organisations are faced with a distinct set of challenges stemming from the harmonious integration of on-premises and cloud environments. These include: 

Hybrid Cloud Security
  • Data Movement and Integration Risks: The seamless flow of data between on-premises and cloud environments introduces risks associated with data movement. Ensuring the secure integration of systems and applications across these diverse landscapes is crucial to prevent unauthorised access or data exposure during transit.
  • Consistent Security Policies: Maintaining consistent security policies across hybrid environments can be challenging due to the varying controls and configurations of private and public clouds. Achieving uniform security measures is imperative to prevent gaps that could be exploited by malicious actors.
  • Identity and Access Management Complexity: Hybrid cloud environments involve a complex network of users and devices across different platforms. Effectively managing identities, access controls, and permissions becomes a critical security challenge to prevent unauthorised access and potential breaches.
  • Interoperability Concerns: Ensuring seamless communication and compatibility between on-premises and cloud-based systems is essential for a functional hybrid cloud. However, interoperability challenges can introduce vulnerabilities if not addressed, potentially leading to data integrity issues or system failures.
  • Visibility and Monitoring: Maintaining visibility into the entire hybrid infrastructure is crucial for detecting and responding to security incidents promptly. Limited visibility can result in delayed threat detection and response, increasing the risk of data breaches or unauthorised access.
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Proxar’s Strategies for Hybrid Cloud Security

We adopt a comprehensive approach to address these challenges, providing solutions that bridge the gap between on-premises and cloud environments. By implementing robust data encryption, seamless identity management, and unified monitoring tools, we ensure that our partners can navigate the complexities of hybrid cloud security with confidence.

As organisations continue to embrace the flexibility offered by hybrid cloud models, Proxar stands as a steadfast ally, delivering tailored security solutions that harmonise the best of both private and public cloud worlds.


In the evolving landscape of cloud computing, where the digital terrain is marked by private clouds, public clouds, and the harmonious fusion of both in hybrid environments, many businesses find themselves needing external expertise to find the way.

Whether your UK business prefers a private, public, or hybrid cloud environment, our tailored cloud security solutions ensure the highest standards of cybersecurity protection without compromising on operational efficiency. Marked by proactive monitoring, robust encryption, and adaptive solutions that scale with your growing business needs, our approach helps you get the most out of the cloud. 

To learn more, get in contact with a member of our team today.