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Understanding Whitelisting: A Simple Guide for Business Owners

Understanding Whitelisting:

A Simple Guide for Business Owners

One effective security measure that can significantly enhance your protection is “whitelisting.” But what exactly is whitelisting, and how can it benefit your business? This post aims to explain whitelisting, so you can consider if this cyber security strategy is right for your business. 

What is Whitelisting?

 

Whitelisting is a cyber security strategy that allows only pre-approved software, applications, and websites to operate within your network. Much like a guest list for a private event; only the names that appear on the list are allowed in. Similarly, whitelisting involves creating a list of authorised programs that can run on your company’s computers and servers. Everything else, which is not on this list, is blocked by default.

Understanding Whitelisting: A Simple Guide for Business Owners

Why Australian Business Owners Should Care About the Essential Eight

 

The Australian Cyber Security Centre (ACSC) includes whitelisting as one of its “Essential Eight” strategies for mitigating cybersecurity incidents. This inclusion highlights the importance of controlling the digital environment in which businesses operate. By implementing whitelisting, organisations can significantly reduce the risk of malicious software (malware) infections, as only approved software can execute on systems.

This proactive approach aligns with the ACSC’s broader goal of creating resilient digital infrastructures that not only prevent security breaches but also minimise the damage should breaches occur.

Whitelisting helps achieve this by ensuring that only trusted and verified applications are allowed to function, thereby safeguarding critical data and operations against unauthorised access and interference.

How Does Whitelisting Work?


The concept of whitelisting in fairly straightforward.

  1. Identifying Legitimate Applications: The first step is to identify all the software tools and applications that are necessary for your business operations.

  2. Creating the Whitelist: Once you have a clear understanding of what needs to run on your network, these applications are added to the whitelist.

  3. Enforcement: Your cyber security system then allows only the applications on the whitelist to operate. Any software not on this list is automatically blocked, preventing unauthorised programs from executing.

However, implementing whitelisting can be time consuming and, without the right support, it could impact business operations.

Understanding Whitelisting: A Simple Guide for Business Owners

How To Safely Implement Whitelisting in Your Business


Implementing whitelisting can seem daunting, but with a structured approach, you can effectively enhance your cybersecurity measures. Here’s a step-by-step guide to help you get started:

  1. Assess Your Software Needs: Begin by conducting a thorough inventory of every piece of software your team uses, including operating systems, applications, and data management tools. This includes everything from essential productivity software to specialised tools specific to your industry.

  2. Establish Your Whitelist: Based on the inventory, develop a comprehensive list of applications that are approved for use. This list should only include software that is necessary for business operations and known to be secure.

  3. Choose the Right Tools: Implement whitelisting through security software that supports application control. Many endpoint security solutions offer whitelisting capabilities that can be configured according to your needs.

  4. Set Up Policies: Define clear policies regarding software installation and updates. Policies should specify who can approve new software additions to the whitelist and the process for doing so. This helps maintain the integrity of the whitelist over time.

  5. Deploy in Phases: Roll out the whitelisting process gradually. Start with a test group of users or departments to refine your whitelist and address any operational issues before deploying it across the entire organisation.

  6. Train Your Team: Educate your employees about the new security measures. Ensure they understand the importance of whitelisting and the procedures for requesting new software additions. Training helps minimise resistance and ensures smoother implementation.

  7. Monitor and Update Regularly: Whitelisting is not a set-and-forget solution. Regular monitoring is essential to ensure that the whitelist remains effective against new threats. Review and update the whitelist periodically to include new, safe applications and remove obsolete or unsupported software.

  8. Prepare for Exceptions and Contingencies: Have a process in place to handle exceptions responsibly and swiftly. There may be instances when an employee needs software that is not on the whitelist. Establishing a quick, secure process for evaluating and approving such requests is crucial to maintaining both productivity and security.

Whilst these steps will help you successfully implement whitelisting in your business, you can also consider seeking support from a cyber security expert like Jam Cyber. With us, we can take care of your whitelisting for you!

The Key Benefits of Whitelisting

Whitelisting is not just about cyber security, here we list the key benefits of implementing this strategy for your business:

  1. Enhanced Security: By only allowing pre-approved applications, you drastically reduce the risk of malware infections. Malicious programs simply won’t run because they’re not on the approved list.

  2. Better Control Over IT Environment: Whitelisting gives you greater control over the applications used in your business, ensuring that only necessary and safe software is used by your employees. This can help improve productivity and employee online safety.

  3. Reduced Costs: With fewer unwanted or malicious programs causing issues, your IT support team will have fewer problems to solve, leading to reduced costs and less downtime.  By undertaking a whitelist audit, you may also be able to reduce the total cost of online subscriptions for your business.
Understanding Whitelisting: A Simple Guide for Business Owners

Considerations Before Implementing Whitelisting


While whitelisting is a robust security measure, it requires careful planning and management:

  • Initial Setup: Setting up a comprehensive whitelist can be time-consuming, as it involves evaluating all the software your business uses.

  • Maintenance: The whitelist needs regular updates as new software or updates to existing applications are rolled out.

  • Potential Disruption: If a necessary application is accidentally not included in the whitelist, it could disrupt business operations until the oversight is corrected.

Is Whitelisting Right for Your Business?

Whitelisting is particularly beneficial for industries where security is paramount, such as finance, healthcare, and legal sectors. However, any business that wants to enhance its cyber security can benefit from this approach. It is most effective when used in conjunction with other security practices, such as regular software updates, comprehensive employee training, and strong next generation antivirus.

Whitelisting can be a powerful cyber security tool. It offers a proactive approach to security by only allowing trusted applications to run, significantly reducing the likelihood of malware infections.

To get help with your whitelisting, contact our team today.

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