![]() ![]() What Issues does Azure AD Security Defaults Have Disabling legacy authentication is a no-brainer if you are not using it, and immediately removes an attack vector on your tenant. In the past this could be somewhat costly, especially for medium-sized organisations with no budget to use Azure AD P1 licences, now you can get this for free.Īlongside MFA, you are also enabling a few defaults which will make you more secure, and in the past would have required conditional access. If you are using MFA, you are adding a significant layer of extra protection against password attacks, credential theft, user spoofing etc. The big selling point here is the free MFA. ![]() Why Would I Want To use Azure AD Security Defaults Any connections you have using legacy authentication will no longer workĪny users in the following Azure AD roles will require MFA every time they sign in to the Azure portal:.When you log in to things like the Azure portal you will now be prompted for MFA.Any users who do not have MFA enabled will be prompted to enable it the next time they log in.Now that defaults are enabled you will find several changes take effect: If you find that you need to disable security defaults you can go back into the same window and change enable to “no”. You may find you get a warning about security defaults replacing baseline protections, this is fine.Ĭhange this to yes and click save, and security defaults will be enabled. This will take you to a page where you can change security defaults from off, to on. At the bottom of the page, you will find a link called “Manage Security Defaults.” To enable security defaults, you need to go into the Azure AD blade in the portal and go to the properties option. If you need to enforce rules more selectively or exclude some users then security defaults won’t work for you, you would need to look at getting some P1 licences and using conditional access. Once you do this, the rules will apply to all users in your tenant, no exceptions. How do Azure AD Security Defaults Work?Īzure AD security defaults are something you need to enable at the tenant level. If you are using P1 or P2 licences you would want to look at using conditional access to perform this (and more) rather than security defaults. Security defaults are very much designed for users on the Azure AD free tier. Requiring MFA authentication when undertaking privileged actions using the Azure portal, PowerShell or CLI.Blocking legacy authentication protocols - this includes clients that don’t use modern authentication and so don’t support MFA, and older mail protocols like IMAP, SMTP and POP3.Requiring those in Azure administrator roles to perform MFA.Requiring all users to sign up for MFA (for free).This encompasses both Azure and Office 365.Īlong with MFA, security defaults also applies several other policies that make your tenant more secure: This is a big benefit for free users and will bring a significant extra level of security. Previously this would have required either Azure AD P1 licences, or pay per use MFA. There are some limitations around this which will discuss, but this service does allow you to get MFA with no additional cost. One of the big selling points for security defaults is that it brings multi-factor authentication to your users for free. Security defaults aim to take some of these security rules and allow you to apply them to your free subscription. If you pay for Azure AD Premium licences, you can do lots of things with security rules by using conditional access, but this is not available in the free tier. Security Defaults are an attempt by Microsoft to try and make Azure AD more secure by default, particularly for users of the free tier. Given that, I thought it was worthy of its own WTH article. Security Defaults are a new feature in Azure AD that was introduced in October 2019 however, I have found that not many people are aware of this feature, which can be really useful if you are on the Azure AD free tier. ![]()
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