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Vulnerabilities

What is a Single Points of Failure (SPOF)? ⚠️ Explained by Wallarm

What is a Single Points of Failure (SPOF)? ⚠️ Explained by Wallarm

The data center disruptions are intolerable since so many essential activities rely on network correspondence. One-third of data centers have annual outages. An hour of data center downtime costs more than $300,000, according to an ITIC survey.

80% of data center outages are preventable, regardless of costs. IT teams often blame malware and other cyber threats for most disruptions. SPOFs across your network are a more basic cause of downtime than cyber-attacks. By minimizing SPOFs on your network, you can boost aligned safety tools, efficiency, and pliability.

Learning Objectives

What is the SPOF? 

A system, circuit, or device is said to have a SPOF if the occurrence of even a minor problem throughout the system is catastrophic. The single point of failure definition means that one failed part or system could affect the performance of the complete facility based on the nature and place of the failure's dependencies. As a result, productivity drops, businesses can't function normally, and safety is jeopardized.

Supply chains, networks, and software applications are examples of high-availability, high-reliability systems that suffer from the unfavorable effects of having a SPOF. Cloud computing introduces the possibility of SPOFs in both network and circuit designs.

Auditing for potential weak spots can help make a system more reliable. In this method, the company can foreseeably implement redundancy wherever a SPOF exists. There should never be a SPOF in an extremely functional system.

Avoiding SPOFs requires high-availability clusters with both physical and logical redundancy. In the event of a failed part of the system, a backup part must take its place promptly. For instance, if a database is replicated in numerous places, users can still access the data even if one of the backups fails. Outages can be avoided and software problems found and fixed if they are found early enough, and cloud architectures should have no SPOFs that rely on servers.

Examples of SPOF

Below are two instances and the effects they can have:

  1. Isolated Machine

Think of a data headquarters with just one server dedicated to one specific system. Without a functioning network, the software would become unreliable or stop responding. Users would be unable to access the software and could lose data due to this happening. 

Server clustering technology is a viable solution. It would make it possible to have a second, identical instance of the program operating on its own dedicated network. If the first server goes down, the second one will take over to keep the application up and remove the SPOF.

  1. Unified Communications Hub

One more common source of SPOF is a network switch connecting numerous servers. The servers attached to the failing controller would be unavailable to all the networks if the power to the controller were cut. 

In this case, the switch is a bottleneck. This might prevent access to dozens of servers and their associated workloads on a big switch. The SPOF can be mitigated by utilizing multiple adjustments and network influences, and the servers that rely on them can continue to function in the event of a switch fiasco.

Defining Single Points of Failure

Locating SPOF should be your first priority. Both your Business Impact Analysis (BIA) and your Risk Assessment ought to incorporate this as a factor in some capacity. Keep in mind that it's possible you have SPOFs, and make an effort to track them down, it can be difficult at times. 

People are sometimes aware of the SPOF but choose not to communicate what they know out of the worry that it would reflect adversely on either them or their department. Instead of focusing on assigning blame, you should try to keep the attention on locating the SPOFs.

How To Avoid Single Points of Failure?

Companies need to take preventative measures to get rid of their most vulnerable sites of failure. These four methods can provide a solid foundation.

  1. Strive For Complete Responsibility

There is a common misconception among managers that teams operating with SPOF (such as a single point of contact) are more effective overall. Contrary to popular belief, the contrary is true. Aim for "extreme ownership," where each member of the team takes full responsibility for the team's performance, rather than a hierarchical structure. 

In reality, this means that teams should initiate actions by posing questions and working to streamline what is needed to complete a task. Everyone needs to have a common understanding before work can begin. When each member of the team can handle the entire job by themselves, if necessary, the process is complete.

When this occurs, it's much more difficult for any one person to become the team's Achilles' heel.

  1. Allow For a Switch in Authority

A flat organization is the antithesis of extreme ownership. Know that if your company currently uses such hierarchies, you will need to adopt new procedures to remove any weak spots. That's tough, but if you team up with someone who has done it before, you'll have a much easier time of it.

  1. Define Guiding Principles

It's much more difficult for SPOF to arise when the norms of interaction are well-communicated and transparent. Implement test-driven development (TDD) and the SOLID Principles to systematize your team's approach to projects and guarantee that your codebase is regularly updated and improved as new features are added.

A power outage or a brief spike in electricity usage can cause major problems for a business, but backup generators and other electrical devices can prevent these problems. Quick arrestors and electrical grounding, for instance, alleviate power surge danger.

Modern data SPOF security systems reduce vulnerability to online intrusions. Included in this are firewalls with database rules and security tools up-to-date for the software version in use, as well as any necessary patches.

  1. Give Everyone a Chance to Make an Impact

SPOFs are not limited to objects; they can also be people. For instance, if only one person in a company understands how an essential system works, that individual is a potential security risk.

Furthermore, when everyone in a company understands how things are done, everyone is empowered to identify better ways to accomplish them. It's smart to cross-train workers. Every industry is vulnerable to new methods of doing things made available by new technologies, thus this is something every company should strive for today.

WAF By Wallarm Can Protect Against SPOF

Wallarm is a cloud-based service that provides comprehensive protection for all popular API types, including REST, gRPC, graphQL, and more. In order to strengthen cybersecurity and lessen the effects of Software and Data Integrity Failures, it provides a multi-pronged preventative approach.

It has a state-of-the-art API and OWASP vulnerability attack simulation tool, in addition to a feature-rich Cloud WAF and a platform for API security and threat prevention.

Using Cloud WAF, it's easy to maintain the safety of serverless applications and API. It provides near-zero false positives, aids in PCI DSS compliance, and allows you to take leverage of the finest CDN benefits available. Wallarm Cloud WAF helps prevent attacks like account hijacking, API misuse, and incorrect setup from ever reaching your servers.

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