How to Review and Update Your Microsoft 365 Security Information

Category: Microsoft 365
Applies to: Windows 10/11, macOS, iPhone, iPad, Android, and Web Browsers
Difficulty: Beginner
Estimated Time: 3–5 minutes

Overview

Your Microsoft 365 security information helps protect your work account from unauthorized access. It includes the verification methods you use when signing in, such as Microsoft Authenticator, phone verification, security keys, and other methods approved by your organization. This guide explains how to review your existing security information, add an additional verification method, and keep your account information up to date.

Before You Begin:

Make sure you know your Microsoft 365 work email address and password.
Have access to your existing Microsoft Authenticator app or another registered verification method.
Make sure your device is connected to the internet.
Have your phone available if you plan to add a new verification method.

Important: If you have lost access to Microsoft Authenticator, replaced your phone without transferring your account, or cannot complete your existing verification method, contact True Synergy Networks. Do not attempt to bypass your organization’s security requirements.

Windows or Mac — Access Your Security Information

Step 1: Open Your Microsoft Account

Open your preferred web browser, such as Microsoft Edge, Google Chrome, Safari, or Firefox.
Visit https://mysignins.microsoft.com/security-info.
Enter your Microsoft 365 work email address.
Enter your password.
Complete any required Microsoft Authenticator verification.

Step 2: Review Your Security Information

Once signed in, you will see the Security info page.

Depending on your organization’s configuration, you may see:

Microsoft Authenticator: An application used to approve sign-in requests or generate verification codes.
Phone: A registered phone number for permitted verification methods.
Security Key: A physical or supported device-based authentication method.
Passkey: A supported passwordless sign-in method.
Other Authentication Methods: Additional verification methods approved by your organization.

Review the methods currently registered to your account.
Confirm that you recognize each registered method.
Check that your information is still accurate.
Look for any old devices or phone numbers you no longer use.

Important: If you see a verification method you do not recognize, contact True Synergy Networks immediately. Do not assume an unfamiliar method is harmless.

How to Add an Additional Sign-In Method

Adding another approved verification method can help ensure you can still access your account if your primary method becomes unavailable.

Step 1: Open Security Information

Visit https://mysignins.microsoft.com/security-info.
Sign in using your Microsoft 365 work account.
Locate Add sign-in method or Add method.
Click the button.

Step 2: Choose a Verification Method

Review the available verification methods.
Select the method you want to add.
Click Add or Next.

Depending on your organization’s policies, available options may include:

Microsoft Authenticator
Phone verification
Security keys
Passkeys
Other approved methods

Note: Not every verification method is available to every organization. True Synergy Networks manages which authentication methods your organization permits.

Recommendation: If your organization allows additional methods, consider registering a backup method so you are not dependent on a single device.

How to Add a Phone Verification Method

If your organization permits phone-based verification, you may be able to add a phone number to your Microsoft 365 security information.

Step 1: Select Phone Verification

Open the Security info page.
Click Add sign-in method.
Select Phone.
Click Add or Next.

Step 2: Enter Your Phone Number

Select your country or region.
Enter your phone number.
Choose an available verification method, such as a phone call or text message.
Click Next.

Step 3: Verify Your Phone Number

Microsoft will send a verification code or place a verification call, depending on the selected method.
Follow the verification instructions.
Enter the code if prompted.
Complete the setup process.
Return to the Security info page.
Confirm that your phone number appears in the registered methods.

Note: Your organization may restrict SMS or phone-based verification. If Phone is not listed as an available option, contact True Synergy Networks if you need assistance.

Important: Never share verification codes with anyone, including True Synergy Networks technicians.

How to Add Microsoft Authenticator as an Additional Method

If you already have access to your account and want to add Microsoft Authenticator on another authorized device, you may be able to register it through your Security info page.

Step 1: Open Security Information

Visit https://mysignins.microsoft.com/security-info.
Sign in using your existing verification method.
Click Add sign-in method.
Select Microsoft Authenticator.
Click Add or Next.

Step 2: Prepare Microsoft Authenticator

On the device you want to register, open Microsoft Authenticator.
If necessary, download the application from the official Apple App Store or Google Play Store.
Tap the + button to add an account.
Select Work or school account.
Choose Scan QR code.

Note: You may need to allow Microsoft Authenticator to access your camera to scan the QR code.

Step 3: Register Your Device

Return to the Security info setup page.
Follow the prompts until Microsoft displays a QR code.
Scan the QR code using Microsoft Authenticator on your device.
Click Next on your computer.
Complete the verification request sent to Microsoft Authenticator.
Return to the Security info page.
Confirm that the newly registered method appears.

Important: Do not remove your existing working Microsoft Authenticator method until you have verified that the new method works successfully.

Note: Some organizations restrict the number or type of authentication devices that can be registered. Contact True Synergy Networks if you receive an administrative restriction.

iPhone or iPad — Review Your Security Information

Step 1: Open Your Microsoft Account

Open Safari or your preferred web browser.
Visit https://mysignins.microsoft.com/security-info.
Sign in using your Microsoft 365 work email address and password.
Complete any required Microsoft Authenticator verification.

Step 2: Review Your Registered Methods

Locate your registered security methods.
Review your Microsoft Authenticator devices and other available methods.
Confirm that the information is accurate.
If you want to add another approved method, select Add sign-in method.
Follow the instructions displayed on your screen.

Note: Adding Microsoft Authenticator to the same phone you are using to view the setup page may require another device to display the QR code or an alternative setup process. Using a computer is generally easier.

Android — Review Your Security Information

Step 1: Open Your Microsoft Account

Open Google Chrome or your preferred web browser.
Visit https://mysignins.microsoft.com/security-info.
Sign in using your Microsoft 365 work account.
Complete any required Microsoft Authenticator verification.

Step 2: Review Your Registered Methods

Locate your registered verification methods.
Confirm that you recognize each method.
Review your registered phone number and Microsoft Authenticator devices, if displayed.
Select Add sign-in method if you want to add another approved method.
Follow the on-screen setup instructions.

Note: Available options may vary depending on your Android device, browser, and organizational security settings.

How to Change Your Default Sign-In Method

Depending on your organization’s configuration, Microsoft 365 may allow you to choose a preferred authentication method.

Step 1: Open Security Information

Visit https://mysignins.microsoft.com/security-info.
Sign in using your work account.
Review your registered verification methods.
Locate Default sign-in method, if available.

Step 2: Select Your Preferred Method

Click Change next to the default sign-in method.
Review the available methods.
Select your preferred method.
Click Confirm or the available save option.
Verify that your preferred method is displayed.

Note: Some organizations use Microsoft-managed or system-preferred authentication methods. In these configurations, users may not be able to manually select their default method.

Important: Changing your preferred verification method does not disable multi-factor authentication or override your organization’s security policies.

How to Review Your Recent Sign-In Activity

Microsoft 365 allows you to review certain recent sign-in attempts associated with your work account.

Step 1: Open My Sign-Ins

Open your preferred web browser.
Visit https://mysignins.microsoft.com.
Sign in using your Microsoft 365 work account.
Open Recent activity or the available sign-in activity section.

Step 2: Review Your Activity

Depending on your organization’s configuration, you may see:

Date and time of sign-in attempts.
Applications or services accessed.
Approximate sign-in locations.
Devices or browsers used.
Successful or unsuccessful sign-in attempts.

Review the available entries.
Look for activity you do not recognize.
Check whether the activity matches devices and applications you normally use.

Note: Sign-in locations may be approximate and can sometimes reflect internet providers, VPN services, or network routing rather than your exact physical location.

Step 3: Report Suspicious Activity

If you notice an unfamiliar sign-in:

Do not approve any unexpected Microsoft Authenticator requests.
Record the approximate date and time of the suspicious activity.
Note the application, location, or device information shown.
Contact True Synergy Networks immediately.

Important: Unexpected sign-in activity may indicate that someone is attempting to access your account. True Synergy Networks can investigate and determine whether additional security measures are necessary.

When to Contact True Synergy Networks

Some Microsoft 365 account security tasks should be completed by your organization’s administrator.
Contact True Synergy Networks if:

You lost access to your Microsoft Authenticator app.
You replaced your phone and cannot sign in.
You forgot your Microsoft 365 password.
Your authentication method is no longer working.
You cannot complete an identity verification request.
You see an unfamiliar security method registered to your account.
You receive unexpected Microsoft Authenticator notifications.
Your account is locked.
You need an authentication method that is restricted by your organization.

Important: Never attempt to bypass multi-factor authentication or use another employee’s verification method to access your account.

Troubleshooting

I Cannot Access My Security Information

If you cannot open the Security info page:

Confirm that your device is connected to the internet.
Verify that you are using the correct Microsoft 365 work account.
Visit https://mysignins.microsoft.com/security-info.
Complete any required sign-in verification.
Try another supported browser if the page does not load.

If you cannot complete authentication, contact True Synergy Networks.

I Cannot Add Another Verification Method

If you cannot add another method:

Confirm that you are signed into the correct Microsoft 365 work account.
Review the available sign-in methods.
Check whether Microsoft displays a restriction or error message.
Verify that you have not already registered the method you are attempting to add.
Contact True Synergy Networks if additional assistance is required.

Note: Authentication method availability is controlled by your organization’s security policies.

Microsoft Authenticator Is Not Receiving Notifications

If you are not receiving sign-in requests:

Confirm that your phone is connected to the internet.
Open Microsoft Authenticator.
Check whether the correct work account is listed.
Verify that notifications are enabled for Microsoft Authenticator.
Confirm that your phone’s date and time are set automatically.
Try the sign-in request again.

If the issue continues, contact True Synergy Networks.

Important: Do not repeatedly approve unexpected authentication requests or accept requests that you did not initiate.

I Replaced My Phone

If you have a new phone:

Confirm whether you still have access to your old phone.
If your old phone is available and your account is accessible, review your registered security methods.
Contact True Synergy Networks if you need assistance transferring or reconfiguring Microsoft Authenticator.
Do not remove the old authentication method until the new method has been successfully configured and verified.

Important: If you no longer have access to your previous authentication method, contact True Synergy Networks. Additional identity verification may be required before your account can be updated.

I See a Verification Method I Do Not Recognize

If you notice an unfamiliar phone number, authenticator device, or other verification method:

Do not assume the method belongs to you.
Record the unfamiliar information displayed.
Avoid making unnecessary changes to your account.
Contact True Synergy Networks immediately.

Important: An unfamiliar verification method may indicate unauthorized account activity and should be investigated.

Additional Information

Microsoft 365 security information helps verify your identity during sign-in.
Available authentication methods depend on your organization’s security policies.
Microsoft Authenticator is commonly used for multi-factor authentication.
Adding an approved backup method can reduce the risk of losing account access.
Some organizations use system-preferred authentication methods rather than user-selected defaults.
Recent sign-in activity can help identify unusual account access attempts.
True Synergy Networks manages administrator-level authentication policies and account recovery.
Lost-device recovery and forgotten-password resets should be handled through True Synergy Networks.

Security Reminder: Never share your Microsoft 365 password, verification codes, authentication recovery information, or Microsoft Authenticator approvals with anyone. Only approve sign-in requests that you initiated. If you notice unfamiliar security methods, suspicious sign-in activity, or unexpected verification prompts, contact True Synergy Networks immediately.