Principle of least privilege in security12/30/2023 ![]() The same idea can be applied to Firewall and Switch configurations for network devices and services. It can be hard to figure out what to remove. If you start from a base of everything being allowed, then it can be hard to tell for sure which permissions will cause interference with an employee’s signed duties. Accomplishing this is much easier when you start from a base of nothing being allowed and build on that. The basic concept is that you allow a user the least amount of privileges that are necessary for them to perform their assigned duties, nothing more. The second option embodies the idea of “ Least Privilege.” In this case, the user is likely to complain (probably quickly) and the situation will be remedied. This approach is much safer, because if a mistake is made, it is most likely going to be that someone is not allowed access to something they SHOULD. You then explicitly allow them to be able to access different places/resources. Using this approach, nobody has access to anywhere/anything to start with. Also, if a user has more access then they should, it’s quite likely they will not complain about it, so it could easily go unnoticed for a long time. It’s the responsibility of the company to properly set this up for them. ![]() Unlike Chotchkies from the movie Office Space, the bare minimum is actually encouraged here. ![]() This is risky, because what happens if you forget to prevent access to somewhere important? A user isn’t responsible for knowing everywhere they should/shouldn’t access. This is where the principle of least privilege applies, only granting the minimum rights to perform specific functions. The Principle of Least Privilege (PoLP) is a cybersecurity concept that ensures a user or other entity only has access to the data and applications necessary to complete their role or tasks. Then you start to explicitly block them from places they shouldn’t be allowed to go. ![]() It is widely considered to be a cybersecurity best practice and is a fundamental step in protecting privileged access to high-value data and assets. Using this approach, what you would do is start off with everyone having access to everywhere. The principle of least privilege is a cybersecurity approach, where users have access to only the data and resources they require to perform their daily job. The principle of least privilege (PoLP) refers to an information security concept in which a user is given the minimum levels of access or permissions needed to perform his/her job functions. ![]()
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