Office 365 Sign Out Of All Devices

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  1. Office 365 Sign Out Of All Devices Online
  2. My Office 365 Sign In

Office 365 Sign Out Of All Devices Online

Note

Microsoft 365 has all the familiar Office apps and more in one place. Work, learn, collaborate, connect, and create with Microsoft 365.

Users experience issues when they try to sign out of Office 365, Microsoft Intune, or Microsoft Azure in a web browser. For example, users may experience one of the following issues: When a user signs out of one of the portals or signs out of Microsoft Outlook Web App, the user isn't signed out of Microsoft SharePoint Online. How to manage devices from Office 365. IT administrators can manage and configure security policies for devices (Windows Phone, iPad, iPhone and Android) from the administration portal Office 365 through a user-friendly interface and without impacting employee productivity. With Microsoft 365, you can install Office on all your devices and sign in to Office on five devices at the same time. This includes any combination of PCs, Macs, tablets, and phones. Get help signing in to Office.

Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.

Problem

Devices

You may have issues when you try to sign in to Microsoft Office 365. Or, you notice that suspicious activity occurs in your account, such as large amounts of spam that originates from your account.

You may also experience one or more of the following issues:

  • The Sent or Deleted Items folders in Microsoft Outlook or in Microsoft Outlook Web App contain common hacked-account messages, such as 'I'm stuck in London, send money.'
  • Unusual profile changes, such as the name, the telephone number, or the postal code were updated.
  • Unusual credential changes, such as multiple password changes are required.
  • Mail forwarding was recently added.
  • An unusual signature was recently added, such as a fake banking signature or a prescription drug signature.
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Solution

Even after you've regained access to your account, the attacker may have added back-door entries that enable the attacker to resume control of the account.

To help resolve these issues, you must perform all the following steps within five minutes of regaining access to your account to make sure that the hijacker doesn't resume control your account. These steps help you remove any back-door entries that the hijacker may have added to your account. After you perform these steps, we recommend that you run a virus scan to make sure that your computer isn't compromised.

Step 1: Make sure that your computer isn't compromised

  1. Make sure that you have Windows Update turned on.
  2. If antivirus software isn't installed on your computer, we recommend that you install antivirus software and then run a scan to make sure that no malicious software is installed on the computer. You can download free anti-malware or antivirus software from Microsoft.

Step 2: Make sure that the attacker can't log on to your Office 365 account

  1. Change your password immediately. Make sure that the password is strong and that it contains upper and lowercase letters, at least one number, and at least one special character.
  2. Don't reuse any of your last five passwords. Even though the password history requirement lets you reuse a more recent password, you should select something that the attacker can't guess.
  3. If your on-premises identity is federated with Office 365, you must change your password on-premises, and then you must notify your administrator of the compromise.

Step 3: Make sure that the attacker can't resume access to your account

My Office 365 Sign In

  1. Make sure that the Exchange account doesn't auto-forward addresses. For more information, go to the following webpage:

  2. Make sure that the Exchange server isn't sending auto-replies.

  3. Make sure that your contact information, such as telephone numbers and addresses, is correct.

Step 4: Additional precautionary steps

  1. Make sure that you verify your sent items. You may have to inform people on your contacts list that your account was compromised. The attacker may have asked them for money, spoofing, for example, that you were stranded in a different country and needed money, or the attacker may send them a virus to also hijack their computers.
  2. Any other service that used this Exchange account as its alternative email account may have been compromised. First, perform these steps for your Office 365 subscription, and then perform these steps for your other accounts.

More information

These issues may occur when your Office 365 subscription has been compromised. In this case, your compromised accounts may be blocked to protect you and your contacts and help you recover your account.

For more information about phishing scams and fraudulent email messages, go to the following websites:

Still need help? Go to Microsoft Community.

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Note

Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.

Problem

Users experience issues when they try to sign out of Office 365, Microsoft Intune, or Microsoft Azure in a web browser. For example, users may experience one of the following issues:

  • When a user signs out of one of the portals or signs out of Microsoft Outlook Web App, the user isn't signed out of Microsoft SharePoint Online.

  • When a user signs out of SharePoint Online, the user isn't signed out of the portal or Outlook Web App.

  • When a user clicks Sign out, the user isn't signed out. Instead, the web browser reloads the current webpage.

  • If your Microsoft account ends in the '.edu' domain extension and is managed by your university domain administrator, or if your Microsoft account was registered or is still registered in Office 365, you may see one of the following messages:

Solution

To resolve this issue, use one of the following methods.

Method 1: Sign out and then sign in to https://mail.office365.com to access your mailbox

If you're receiving the 'We're having trouble signing you in' error message, see 'We're having trouble signing you in' message when you try to access your mail in Office 365.

Method 2: Close and reopen all web browsers

Close all web browsers and then reopen them.

To end the task for your browser, follow these steps:

  1. Right-click the taskbar, and then click Task Manager.

  2. Click the Details tab, and then do one of the following:

    • If you're using Internet Explorer, find iexplore.exe in the list, right-click it, and then click End task.

      Note Make sure that you end the Iexplore.exe task. Do not end the Explore.exe task.

    • If you're using Mozilla Firefox, find and right-click firefox.exe in the list, and then click End task.

    • If you're using Apple Safari, find and right-click safari.exe in the list, and then click End task.

    • If you're using Google Chrome, find and right-click chrome.exe in the list, and then click End task.

    Note

    • If more than one browser is listed, end the task for each browser.
    • If you're using a different browser than those that are listed here, end the task for that browser.

Method 3: Sign out of all Microsoft online services

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You may be signed in to another Microsoft online service, and this may be preventing you from signing out. If this is the case, sign out of all Microsoft online services. To do this, follow these steps:

  1. Go to https://login.microsoftonline.com/logout.srf, and then sign out (if you aren't already signed out).
  2. Go to https://login.live.com/logout.srf, and then sign out (if you aren't already signed out).

Method 4: Clear cookies from the web browser

Clear cookies from the web browser, and then try signing out again. The steps for doing this vary, depending on the browser that you're using. For more information, see the following resources:

  • If you're using Internet Explorer, see How to delete cookie files in Internet Explorer .
  • If you're using Google Chrome, see Manage your cookies and site data.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

More information

This behavior is by design. Azure Active Directory-based services (including Office 365, Azure, and Intune) use cookies to remember who you are and to automatically sign you in.

The sign-out process for services forces the session cookies to expire. These session cookies are used to maintain your sign-in state when you use these services. However, because the web browser is still running and may not be updated to handle cookies correctly, you may have a cookie that is not updated to expire and finish the sign-out process. By default, these cookies are valid for eight hours or are set to expire when you close all web browsers.

Still need help? Go to Microsoft Community or the Azure Active Directory Forums website.