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Whitelist vs. Blacklist: What’s the Difference and What is Best?

Companies everywhere understand the need for application security, but they may not know which route to take. If you are considering the whitelist vs. blacklist approach, you’re not alone. Many companies don’t understand the subtle differences and which one to consider, but Comodo can help. We do understand the differences and can help make it simple for you with our product.

The Differences in Approach

It is important to know the approaches and differences with a whitelist and a blacklist. The whitelisting approach includes:

  • Default-deny
  • Uses a list of approved apps, software, emails, domains, etc.
  • Items not on the approved list are restricted or denied, depending on your company’s needs

The blacklist approach includes:

  • Default-allow
  • Uses a list of unapproved apps, software, emails, domains, etc.
  • Items not on the unapproved list can be used without any modifications or control

In-Depth Explanation

As you can see, the primary difference is that whitelisting automatically denies everything and allows a few things while blacklisting automatically approves everything and rejects a few things. If you blacklist items, you have to know the known threats associated with those programs or applications. Otherwise, you could risk infection. With a whitelist, you can approve the things that your company needs and effectively block everything else.

Which Option for You?

While it may depend on your company, most businesses should consider a whitelisting approach to apps, websites, software and more. We can help you because our product offers a whitelisting option, making it easier than ever to take control over users and give them what they need for their job without causing a security risk. Blacklisting could increase your risk of infections and can impact system performance, but whitelisting is the opposite. Contact us us to learn more.