Which of the following security practices are the best example of the principle of least privilege?
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. 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. Least privilege extends beyond human access. The model can be applied to applications, systems or connected devices that require privileges or permissions to perform a required task. Least privilege enforcement ensures the non-human tool has the requisite access needed – and nothing more. Effective least privilege enforcement requires a way to centrally manage and secure privileged credentials, along with flexible controls that can balance cybersecurity and compliance requirements with operational and end-user needs. Show What is Privilege Creep?When organizations opt to revoke all administrative rights from business users, the IT team will often need to re-grant privileges so that users can perform certain tasks. For example, many legacy and homegrown applications used within enterprise IT environments require privileges to run, as do many commercial off-the-shelf (COTS) applications. For business users to run these authorized and necessary applications, the IT team has to give local administrator privileges back to the users. Once privileges are re-granted, they are rarely revoked, and over time, organizations can end up with many of their users holding local administrator rights again. This “privilege creep” reopens the security loophole associated with excessive administrative rights and makes organizations – that likely believe they are well-protected – more vulnerable to threats. By implementing least privilege access controls, organizations can help curb “privilege creep” and ensure human and non-human users only have the minimum levels of access required. Why is the Principle of Least Privilege Important?
How to Implement the Least Privilege in Your OrganizationTo implement the principle of least privilege, organizations typically take one or some of the following steps, as part of a broader defense-in-depth cybersecurity strategy:
The principle of least privilege is a foundational component of zero trust frameworks. Centered on the belief that organizations should not automatically trust anything inside or outside their perimeters, Zero Trust demands that organizations verify anything and everything trying to connect to systems before granting access. As many organizations accelerate their digital transformation strategies, they are shifting from traditional perimeter security approaches to the Zero Trust framework to protect their most sensitive networks. Learn More About the Principle of Least Privilege
In this blog post, we will explain the principle of least privilege (POLP), provide the definition and use cases, and explain the importance of the principle. Like many other security principles and concepts, this principle is one part of a larger security strategy that aims at mitigating the risk of security breach. DefinitionThe principle of least privilege, or “principle of least authority,” is a security best practice that requires limiting privileges to the minimum necessary to perform the job or task. IT administrators often think about this principle in terms of the access rights for user accounts, admin rights and computer security settings. However, the security principle of least privilege has broader applicability, including organization-wide access controls and physical security, and even scenarios outside of the workplace. Examples of how least privilege helps improve securityTo illustrate the value of enforcing the principle of least privilege, let’s walk through a few scenarios:
These are just a few examples of how enforcing the principle of least privilege can reduce the risk of malicious behavior and errors, and minimize the ability of malware and attackers who compromise your accounts to access the systems, data and resources in your network. Least Privilege best practicesAs you implement the principle of least privilege, keep the following best practices in mind:
As we have seen, the principle of least privilege is one important way to reduce your overall attack surface area and enhance security. However, it’s essential to remember that a policy of least privilege by itself is not sufficient for strong access management. Here are some other key best practices that will help round out your security strategy:
ConclusionBy implementing — and strictly enforcing — the principle of least privilege, you can dramatically improve your organization’s security posture. IT administrators, HR teams and data owners must work together to determine exactly what permissions each account should have and then regularly review and right-size them as necessary to minimize risk. |