
Application programming interfaces (APIs) are a crucial aspect of most businesses. Its responsibility involves the transfer of information between systems within an organization or to external companies. Unfortunately, a rogue API can expose sensitive data and the organization’s internal infrastructure to misuse.
A security breach could result in the leaking of sensitive customer data such as PHI or financial data. This article will give an overview of the vulnerabilities of APIs that hackers take advantage of and how best to secure them.
What is a Rogue API?
A rogue API is an API which lacks approval or authorization by a company to provide access to its data. Instead, they get created by third-party developers who access the company’s data through a back door.
Rogue developers often do not use the same security protocols abide by the same data privacy laws as the company. Several effects of these Rogue API activities include:
- The collection of sensitive data from a business without permission, such as customer information, financial data, or proprietary information
- The deletion or modification of stored data on a system.
- The corruption of important files or rendering them inaccessible.
- Using a rogue API allows the bypass security controls on a site.
- A damaged reputation due to financial losses.
The Importance of API Security
Access to APIs occur through public networks from any location. This makes them easily accessible to attackers and simple to reverse-engineer.
APIs functions are central to microservices architectures. They help to build client-side applications that focus on customers, employees, partners, and more. The client-side application, like a web or a mobile application, interacts with the server side via the API. Invariably, they become a natural target for cybercriminals and are very sensitive to Denial of Service (DoS) attacks.
Consequently, implementing and maintaining API security (although an exhaustive process) becomes a critical necessity. Moreover, API security practices should cover access control policies and the identification and remediation of attacks on APIs. The best way to protect data is to ensure that only approved APIs access a company’s sensitive data.
Effective Strategies to Reduce Rogue API Vulnerabilities
Here are some steps organizations can take to protect against a rogue API:
- Use a network security solution that detects and blocks API threats.
- Grant access to sensitive data only to those who need it.
- Conduct constant API activity monitoring for suspicious or unauthorized activity.
- Promptly blocking suspicious IP addresses.
- Keep all data secure by using trusted third-party services.
Best API Security Practices Against Rogue API
Get Educated on all Security Risks
Developers need in-depth knowledge of cyber criminals’ latest techniques to penetrate a system. One strategy is to get information from trusted online sources like newsletters, malware security blogs, and security news portals.
By being up-to-date with the latest hacking trends, developers can configure their APIs and ensure they thwart the latest attacks.
Authenticate & Authorize
Businesses need to carefully control access to their API resources. First, they must carefully and comprehensively identify all related devices and users. An effective strategy involves the use of a client-side application. It has to include a token in the API call so that the service can validate the client easily.
Furthermore, standard web tokens can be used to authenticate API traffic and to define access control rules. Businesses can also use grant types to determine which users, groups, and roles need access to specific API resources. For example, a user that only needs to read a blog or post a comment should only receive permission that reflects this.
Encrypt Your Data
All data requires appropriate encryption so that only authorized users can modify and decrypt the data.
It helps to protect sensitive data and enhance the security of communication between client apps and servers. The beauty is that encrypted data prevents unauthorized entities from reading them even with gained access.
Validate the Data
Most businesses rely only on the cleansing and validation of API data from external partners. Therefore, companies must implement data cleaning and validation routines to prevent standard injection flaws and attacks.
The use of debugging tools helps to examine the API’s data flow as well as track errors and anomalies.
Identify API Vulnerabilities
One important API security best practice is to perform a risk assessment. However, you must first know the faucets of your network remain vulnerable to risk .
Overall vulnerability can be difficult pinpoint because software organizations constantly use thousands of APIs simultaneously. To succeed with API security, establish measures that eliminate vulnerabilities to mitigate risk and meet security policies.
Furthermore, the discovery of vulnerabilities requires businesses to conduct rigorous testing. A great place to begin is at the initial phase of development. After that, it becomes easy to rectify them quickly.
Limit the Sharing of Confidential Information
Sharing only necessary information is a great management best practice, which is why a client application comes in handy. It filters relevant information from the entire data record present in API responses.
A developer should remember to remove sensitive information like passwords and keys before making the API publicly available. This prevents attackers from gaining access to sensitive data or entry to the application and the core of the API.
However, releasing only relevant information is a form of lazy programming. Other consequences include slowing response times and providing hackers with more information about the API access resources.
Final Thoughts on Rogue API Defense
API gateways focus on managing and controlling API traffic. Utilizing a strong API gateway minimizes security. Additionally, a solid API gateway would let organizations validate traffic and analyze and control how the API gets utilized.
About Portnox
Portnox provides simple-to-deploy, operate and maintain network access control, security and visibility solutions. Portnox software can be deployed on-premises, as a cloud-delivered service, or in hybrid mode. It is agentless and vendor-agnostic, allowing organizations to maximize their existing network and cybersecurity investments. Hundreds of enterprises around the world rely on Portnox for network visibility, cybersecurity policy enforcement and regulatory compliance. The company has been recognized for its innovations by Info Security Products Guide, Cyber Security Excellence Awards, IoT Innovator Awards, Computing Security Awards, Best of Interop ITX and Cyber Defense Magazine. Portnox has offices in the U.S., Europe and Asia. For information visit http://www.portnox.com, and follow us on Twitter and LinkedIn.。
About Version 2 Digital
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.
Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.













Tom Okman, Co-founder of Nord Security
Since the establishment of Nord Security and until this year, we have operated without external funding – and we have learned many lessons. Last week, I had the great honor of presenting our main takeaways from this bootstrapping journey on the stage of Web Summit. Here are the four main insights that I shared for founders focused on bootstrapping their business:
#1 Perfect your company’s mission
Your company’s mission is not just a catchy slogan you place on your “About” page and then forget about it. Your mission is the underlying DNA of every meeting and every creative solution, and it works in the background every time your people decline offers from other companies.
When you raise funding, it’s easy to lose sight of why you started your company in the first place. But when you are bootstrapping, your mission and your customers guide your business path. So bootstrapping founders, instead of focusing on raising the next round of funding, look for innovative ways to turn their mission into a reality. They are also more receptive to what customers are saying to them. That feedback naturally helps polish and evolve your mission over time, which in turn helps improve your corporate and product strategies. And it comes with a bonus – the company develops a solid internal culture.
#2 Build local, ship global
Some entrepreneurs are wary of using local talent pools, especially if the business is starting outside established startup hubs like Silicon Valley or Israel. However, that was not the case in our story. In fact, we were fortunate to start our company in Lithuania. While funding was scarce when we started, the local ecosystem, partners, and infrastructure helped us immensely in getting our business off the ground. People in Lithuania are talented and keen to prove themselves to their international peers. So one of our best decisions early in the business was to tap into that talent pool and support from local associations and policymakers.
Today, more than ever, talent and support for entrepreneurs are spread throughout Europe, both in traditional tech hubs and rising startup center’s. As a result, the startup world is getting flatter, so now is the best time to take advantage of building locally while shipping globally.
#3 Focus on the customer
Customers are royalty, especially when entrepreneurs operate without external funding. In such cases, customers become leading investors and the most sustainable source of financing, and startups must focus on them above all else. So to be successful, entrepreneurs have to build a product that their customers will love and want to pay for, meaning that creating a market fit for products becomes central to a startup’s survival. Unfortunately, you don’t have a large treasure chest on your side when you are bootstrapped, so the key is to be efficient in adapting to your customer’s feedback.
#4 Take risks and be nimble
The bootstrapping route empowers entrepreneurs to take charge of the big decisions when it comes to vision, hiring, operations, or finances. That gives self-funded startups an edge because they can be much more flexible, agile, and tenacious than other companies. But at the same time, not taking outside financing pushes entrepreneurs to be hungrier in finding ways to improve their business. Because knowing that customers are critical, you can’t simply spend your way out of problems. In Nord Security’s case, it usually meant taking risks and being the pioneer in educating the market and customers about a new use case, product feature, or upcoming challenges.
While such a situation might sound precarious, in a way, it also means returning to what makes startup culture great – the ability and willingness to be inventive and take risks. But it is essential to be decisive when things need to be fixed and be bold in pivoting because inertia can sometimes be more dangerous than recklessness. This combination can prove extremely potent if entrepreneurs allow themselves to be guided by their leading investors – the customers – and their mission-driven culture. But only if founders are willing to lean into it fully. 


