Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your "issue" fixed, it's better to be safe and not click any links or provide any personal information.

Protect yourself from phishing Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate. Cybercriminals typically pretend to be reputable companies, friends, or acquaintances in a fake message, which ...

A phishing email is an email that appears legitimate but is actually an attempt to get your personal information or steal your money. Some deceptive emails appear to be from a safe sender but, in fact, have a "spoofed" source address to fool you. Here are some ways to deal with phishing and spoofing scams in Outlook.com. Spoof intelligence in Exchange Online Protection helps prevent phishing ...

Learn how to remove passwords from your Microsoft account to increase security.

Learn how to go passwordless on Windows with Windows Hello and your Microsoft account.

When you sign in with Windows Hello, your biometric data is stored securely (see here for more technical information). Malicious users and attackers constantly try to come up with new ways to access your device and access sensitive information. To stop them, you need a secure sign-in process that begins at the biometric sensor, and ends where your profile is stored. What does Enhanced Sign-in ...

Using Authenticator as a way to sign in If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Go to the site where you want to sign in. Enter your username at the sign-in prompt and select Next. Select Send notification.

This article has guidance for: Organizations with IT-managed Windows devices and updates.

Learn how to fix email issues for error code 5.7.515 when sending email to Outlook.com (the sending domain does not meet the required authentication level).

Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.