Navigate to and log on with a user that has sufficient permissions.If you need more history you need Azure AD P1 or above. Sign-in logs are now free for every Azure AD tenant, but without a license you can only go back 7 days. Microsoft made it very easy to check if your organisation is using legacy authentication protocols by using the sign-in logs. Update: Azure AD P1 is now included in Microsoft 365 Business (Premium)! Legacy Authentication Protocols This blog post is part of my Azure AD Best Practices post. Azure AD accounts in organizations that have disabled legacy authentication experience 67 percent fewer compromises than those where legacy authentication is enabled.More than 97 percent of credential stuffing attacks use legacy authentication.More than 99 percent of password spray attacks use legacy authentication protocols.Microsoft gave us some numbers to make this very clear. Legacy authentication is unsafe because you can’t enforce multi-factor authentication on them – that’s why enabling MFA for your users isn’t effective if you don’t block legacy protocols. Legacy authentication refers to authentication request made by older Office clients (2010 and below) or other clients that use old protocols like IMAP, POP3 or SMTP.

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