What Is Whitelisting? A Simple Guide In 5 Points


Viruses attack the systems and retrieve important data and information. Hence, the administrator-approved program must monitor access to the system. Even minor ransomware attacks affect small and medium businesses. Whitelist is a program that tracks the updated versions of applications, unlicensed or prohibited. Moreover, it tracks the application switch and incident response. A cybersecurity list that allows a series of accepted programs like IP and e-mail addresses to access the system and protects it from malware or virus hampering the software by blocking a list of unapproved applications. 

  1. Whitelisting Vs Blacklisting 
  2. E-mail whitelists
  3. Blacklisting 
  4. Benefits of whitelisting
  5. What can you do to implement a whitelist?

1. Whitelisting Vs Blacklisting 

Whitelist approach is a customized program based on unique needs. 

Examples include the YouTube kids version chosen with age-appropriateness than algorithmic suggestions. Whitelisting sites are considered safe for employees to navigate while accessing their private network.

IP whitelist is a series of accepted domains with permission to access your platforms. This is confined to reserved users, and IP whitelisting is upgraded by the system administrator. 

2. E-mail whitelists

E-mail whitelists were about to spike up to 126 in 2019, and e-mail whitelists are productive and lifesaving arenas. A list of pre-accepted e-mail addresses saves time, preventing navigation of the entire list of e-mails from the clients and business partners from your junk mail. 

Recent research has reported that 91 % of cyberattacks occur through phishing or spoofing email. There are 18 spam emails received for every 94 employees on average. There is a possibility that with the advent of email whitelist and the one-third population has global access to the mail, reduce phishing with whitelist helps in preventing the occurrence of more spam to junk folders. 

Application whitelists protect your computer from malware, spam, ransomware, and other threats. It provides access to the accepted apps to run. Hence, anything not whitelisted is not safe and prevented from accessing the software. 

3. Blacklisting 

 A list of applications: e-mail addresses, IP addresses, and websites that are unable to access your network. Examples include the traditional antivirus software depend on and trust blacklist. Whitelist presumes any application that is not in the series or list is unsafe, and blacklist perceives everything on the list is unsafe. Furthermore, the whitelist is a non-remitted deny approach, and the blacklist being a non-remitted- allow approach. 

4. Benefits of whitelisting

  • Amplified cybersecurity practices: 

Viruses can impede the applications by multiplying rapidly, making it difficult to be tracked by other applications. Blacklisting each virus would consume your time, paving the way for the future virus to find its way into your network. Hackers will slightly change the strain of the virus to get around the blacklist to access your network. Studies reported that the new malware overpowers traditional antivirus software. Whitelisting eases cybersecurity relatively, with a need to approve applications, addresses. The others are blocked and prevented from accessing the network. Studies in 2016, 95% of IT leaders work on security with a plan to execute whitelisting solutions, although they are occasionally false-positive.

Research indicates that 53% of employees are productive even while using their phones at work. Despite the increased rate of productivity, multiple devices on an insecure network allow accidental insider attacks on the businesses. There are plenty of opportunities to be distracted, and a survey has indicated that many employees watch videos that are not related to work, on average.

  • Complying with other software:

Cybersecurity defences are advanced when diversified. A collection of anti-ransomware, anti-malware, anti-virus software, with penetration testing checking for susceptibilities in your network. Whitelist suits here running alongside blacklisting antivirus software that serves as an additional tool in your cyber network. A whitelist is a wonderful approach for securing information by boosting defences, decreasing cyber threats.

5. What can you do to implement a whitelist?

  •  E-mail whitelists:
  • Create an email whitelist by adding accepted email addresses to your contact list. 
  • For improved cyber defences, a routine cybersecurity training pairing email analysis with activity and network monitoring, 
  • Upgrade whitelists for minimizing vulnerabilities.
  • Application whitelists:

For using the application whitelisting capabilities inbuilt into the system following the National Institute of Standards and Technology’s suggestion would be beneficial: Whitelisting stops loopholes and helps in getting in technological innovations.

  • IP whitelisting
  • Confirm if your IP address is immobile before whitelisting
  • Use a .htaccess file for optimum whitelisting control.
  • Whitelisting shortcuts plugin in your login pages.


Whitelisting processes are customized approaches for approval of applications accessing the network. For providing the administrator approval program, it is a great idea, time, and productivity-wise for being considerate to end-users with more approval.

The use of a whitelist relies on your business goals and requirements. Whitelisting solutions are not uniform, they are streamlined for an operational learning curve, and others require hands-on attention from a committed staff. Payoffs are ideal. Small and medium businesses and large corporations with whitelists have fewer chances of cyberattack risks followed by reputational and financial losses. Trusting your employees with a set of administrator-approval programs is beneficial for success in your businesses. 

So, have you made up your mind to make a career in Cyber Security? Visit our Cyber Security Courses for further help. It is the first program in offensive technologies in India and allows learners to practice in a real-time simulated ecosystem, that will give you an edge in this competitive world.


Related Articles

Please wait while your application is being created.
Request Callback