Cloud network security strategic imperative

Cloud network security explained

Contemporary multi-cloud and hybrid cloud networks are operational powerhouses. However, they are more vulnerable than ever to novel internal and external threats.

With a single network mishap capable of collapsing an organization, enterprises must act now to prevent their networks from falling victim to today’s sophisticated threats.

This post discusses why robust cloud network security is a must and how AlgoSec can help address the challenges in achieving it.

What is cloud network security?

Cloud network security refers to the interoperating strategies, technologies, processes, and teams that focus on securing cloud networks and mitigating potent network threats. Its importance is reflected in the behemoth network security market, which is on track to reach over $100 billion at a CAGR of 7.12% by 2029.

Given today’s threat landscape and dynamic IT environments, cloud network security is a radically different undertaking than it was in the past. The perimeter-based model—assuming an entity is safe simply by being within the network perimeter—no longer provides adequate protection for modern environments.

Cloud network security requirements have transcended what manual processes and siloed security tools can achieve. Implicit trust becomes an antiquated approach, and continuous verification becomes non-negotiable.

Hybrid cloud architectures, edge deployments, and ephemeral workloads demand a more sophisticated cloud network security strategy, grounded in zero trust principles.

Core components of cloud network security

Let’s take a look at what constitutes robust cloud network security.

Cloud firewalls

A staple of cloud network security, cloud firewalls help filter and control east-west traffic across networks. They act as a sieve between secured internal networks and unsecured, potentially risky external networks.

Encryption

Encryption involves rendering information that passes through enterprise cloud networks into unreadable ciphertext, which can only be made readable again with a decryption key. By using encryption, enterprises de-assetize sensitive data for unauthorized users.

Network access control (NAC)

While encryption focuses on protecting the data that flows through enterprise networks, NAC polices which users can access these networks. In other words, only users and devices that are on the NAC list (NACL) can gain network access.

Cloud segmentation

Cloud segmentation involves granularly dividing a cloud network into smaller sections, each with unique cloud firewall rules and policies. This helps achieve fine-grained control over networks while preventing adversaries from moving laterally.

Network threat detection and response

Modern cloud networks face a constant barrage of threats, making real-time network threat detection an imperative.

But network threat detection is only one half of the puzzle; enterprises must also be able to respond to threats swiftly. Effective network threat detection and response involves ML-driven telemetry analysis, external threat intelligence, and automated remediation mechanisms.

SSL/TLS traffic inspection

Encryption secures significant portions of network traffic, but SSL/TLS inspection offers an additional line of defense. This entails intercepting and decrypting SSL/TLS-encrypted traffic, validating safety and compliance, re-encrypting them, and then reintegrating them into network traffic flows.

Security information and event management (SIEM)

SIEM tools gather and aggregate diverse data, including cloud and network telemetry data for contextualization and correlation. As a result, SIEM tools achieve an interconnected understanding of patterns and risks across cloud networks.

Identity and access management (IAM)

IAM tools focus on protecting a new cloud network security perimeter: digital identities.

From right-sizing access privileges based on zero trust principles to supporting cloud segmentation strategies, IAM is a core cog in the cloud network security wheel.

Why is cloud network security critical?

Today’s distributed and dynamic architectures—and surrounding threat landscape—have made control, governance, and visibility across cloud networks difficult to achieve.

In this complex setting, cloud network security is critical due to the following benefits:

• Enhanced data privacy and compliance: Ensures adherence to compliance obligations while protecting network workloads
• Optimized policy management: Automates, centralizes, and fine-tunes policy enforcement to ensure complete control of cloud networks
• Reduced likelihood of cyberattacks: Mitigates misconfigurations and suspicious network activities before they escalate into full-fledged events
• Streamlined network performance: Maintains low latency and high throughput via cloud segmentation, smart policy management, and dynamic traffic routing

Recommendations for cloud network security

Below are some best practices for achieving robust cloud network security.

Implement zero trust network access (ZTNA)

ZTNA applies the concept of zero trust to application and network access. Organizations must build their cloud network security around ZTNA principles to eliminate implicit trust for services and users, ensuring continuous authentication and authorization.

Adopt micro-segmentation strategies

Cloud network security hinges on micro-segmentation. Enterprises should make cloud segmentation the defining principle of all architectural decision-making to contain threats, curb lateral movement, and optimize policy management.

Embrace a secure access service edge (SASE) architecture

SASE coalesces networking and security into a single architecture. For strong cloud network security, organizations must adopt SASE models to unify ZTNA, cloud firewalls, NACs, network threat detection, and SD-WAN into a single cloud platform.

Introduce DDoS protection and web application firewalls (WAFs)

DDoS protection and WAFs secure internet-facing services, addressing network-level and application-level risks. Implement DDoS protection to mitigate volumetric attacks targeting your network, and WAFs to zero in on securing application traffic.

Secure cross-cloud connectivity

Organizations should understand how applications within the cloud network communicate with each other and map cross-environment connectivity flows. It’s imperative that applications are encrypted, compliant, and bound by stringent policies.

Assign roles per the cloud shared responsibility model

For optimal cloud network security, enterprises must clearly delineate shared security responsibilities: Which cloud network security responsibilities are ours, and which ones belong to our vendors?

How AlgoSec tackles complex cloud network security challenges

A cutting-edge cloud network security solution helps companies achieve full-stack network visibility and optimize policy management.

The cloud network security challenges discussed above are exactly what AlgoSec was purpose-built to address via its flagship cloud network security features:

• Unified and automated cloud network security
• Complete network visibility with no blind spots
• Automated policy and change management
• Continuous compliance checks
• Mapping of applications to network firewall rules
• Hybrid cloud segmentation
• Network risk triage based on business impact
• Robust ZTNA foundation
• Advanced network threat detection

Together, these capabilities make AlgoSec the ideal cloud network security platform for enterprises.

Conclusion

Cloud network security has reached a level of complexity that traditional approaches and tools can no longer handle. AlgoSec, a robust application- and network-centric security platform, is ideal for enterprises looking to strengthen their networks and engineer micro-segmentation based on ZTNA.

AlgoSec Cloud Enterprise (ACE) is a comprehensive solution to keep cloud networks visible, secure, and compliant. AlgoSec’s ASMS suite, including the Firewall Analyzer, FireFlow, and AppViz, directly addresses the cornerstones of cloud network security: hybrid network visibility, cloud firewall management, automated policy management, and application and connectivity discovery.

AlgoSec addresses a company’s entire spectrum of contemporary cloud network security needs.

Want to reinforce your cloud network security? Talk to an AlgoSec expert and request a demo today.

FAQs

What is zero trust network access (ZTNA)?

ZTNA is a component of zero trust that specifically focuses on application and network access.

What is secure access service edge (SASE)?

SASE offers an architectural model that unifies security and networking.

What is network access control (NAC)?

NAC ensures that all devices and users are verified before accessing cloud networks.

What is a web application firewall (WAF)?

A WAF filters and controls network traffic going toward applications.

What is DDoS protection?

DDoS protection helps secure cloud networks from high-volume flooding via distributed denial-of-service (DDoS) attacks.

What is micro-segmentation?

Micro-segmentation involves breaking a cloud network into granular components to fine-tune policies, contain threats, and prevent lateral movement.