Your Outlook calendar, quietly protected.

CalendarShield checks the invitations in your Outlook calendar for warning signs — fake security alerts, invoice scams, call-back numbers — explains them in plain language, and lets you quarantine them reversibly. Nothing changes unless you choose to.

• Read-only access to your calendar to start. CalendarShield never reads your e-mail.
• Works with Outlook.com, Hotmail and Microsoft 365 work or school accounts.
• Write access is asked only if you decide to quarantine or remove an event, and used only for the actions you confirm.