Summary The /INTEGRITYCHECK linker option provides Windows kernel digital signature verification for user mode Portable Executables (PE) files. This linker option is required for anti-malware and anti-cheat scenarios to register components with the Windows Security Center. You must sign IntegrityCheck-linked user mode PEs using Trusted Signing (formerly Azure Code Signing). The cross-signing ...

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Registering a device gives your phone access to your organization's services but doesn't allow your organization access to your phone. If you're an administrator, you can find more information in Configure and enable users for SMS-based authentication. If your organization hasn't made SMS sign-in available, you won't see an option for it when registering a phone with your account. When you ...

Learn how to protect your PC, identity, and data from tech support scams.

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 contains a link to a phishing ...

Learn how to keep your Microsoft account safe, including making a strong password, identifying safe emails, and reviewing account activity.

Learn how to identify and open encrypted and protected emails no matter what email client you're using.

Notes: Security info doesn't support using phone extensions. Even if you add the proper format, +1 4255551234X12345, the extensions are removed before the call is placed. If you don't see a phone option, it's possible that your organization doesn't allow you to use this option for verification. In this case, you'll need to choose another method or contact your organization's help desk for more ...

Find help and support content for Microsoft Phone Link. Learn time-saving tips and explore how you can use Phone Link to stay productive.

How do I check if I’m running the latest version of Phone Link?