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The Difference between Whitelisting and Blacklisting and Why It Matters | IT Consulting on Long Island

You can choose to implement whitelisting, blacklisting, or a mixture of both when handling data security. These are approaches used for protecting data and systems from intrusion by unauthorized applications, users, and malicious software. Below, IT consulting professionals on Long Island explain the primary differences between whitelisting and blacklisting and why it matters.

Definition of Blacklisting

Considered a threat-centric approach, blacklisting is one of the oldest algorithms in computer security. It is all about identifying what needs to be blocked, and this can be anything from:

  • IP addresses
  • Websites
  • Users
  • Computer hardware addresses
  • Applications
  • Email addresses
  • Software (malware, virus), and other potentially harmful entities

Worth noting is that for blacklisting to work, it needs identification of known or suspected threats. This demands creating a list that contains executables or applications that may pose a threat to a network.

In addition to malware, this can also be in the form of entities that tamper with productivity. Numerous users love this approach for its simplicity and effectiveness. One of the major limitations of blacklisting is its inability to guard against unidentified risks like zero-day threats.

Read more: Cyber Security Tips on Long Island: 3 Best Approaches to Preventing Ransomware

Definition of Whitelisting

Whitelisting is the opposite of blacklisting. It is an approach where a list of trusted entities like email addresses, software applications, processes, users, and devices, amongst others, are allowed to access a network or system.

When IT consulting professionals on Long Island use this approach, it means they will block everything else. It works on a “Zero-Trust” policy which only allows what is necessary and denies all.

Whitelisting is highly recommended for high-risk security environments as well as industrial and corporate environments. One of the drawbacks of this approach is the time and resources spent on drawing up an acceptable list of entities and keeping this updated at all times.

Whitelisting or Blacklisting: What Approach to Use?

There is no defined guideline on which approach is better than the other. An organization should study the pros and cons of blacklisting and whitelisting to pick the most appropriate one.

As a business owner, aligning your business objectives and technology is key to remaining competitive and successful. It is possible to achieve this by hiring the right IT consulting company on Long Island. Total Technology Solutions is your best bet. We offer an extensive range of services, including managed services to secure and support the IT infrastructure of your Long Island business. Our company achieves this through a combination of reliable solutions and exceptional professional services. Contact us now to learn more about our services and to know how we can help keep your business safe and competitive.

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