To do this, open the Windows Settings and navigate to Apps > Default apps > Choose default apps by file type. Select the desired file type and choose an app according to the requirements.

Microsoft Defender, the company’s security app, is now available to any individual who has a subscription to Microsoft 365, the online productivity suite that includes Word, Excel, and more.

"Defender for iOS users, please note [that] web protection (anti-phishing) on iOS uses a VPN to help keep you safer from harmful links," Microsoft says.