How to Remove the Dangerous Calendar Spam from Your iPhone

Introduction

Did you accidentally tap a "CLICK SUBSCRIBE" pop-up on Safari or a suspicious website? Is your iPhone suddenly filled with calendar spam, fake virus alerts, adult ads, or scam notifications?

This guide will help you completely remove the dangerous calendar spam virus from your iPhone and stop it from coming back.

If you prefer watching instead of reading, here's the full video guide: Watch the video on YouTube

Solution 1 — Remove the Subscribed Calendar (Most Effective)

This method works on all iPhones, from iOS 12 to iOS 18.

1. Open the Calendar App

1. Tap Calendars at the bottom
2. Look for suspicious entries such as:
   • CLICK SUBSCRIBE
   • Important Alerts
   • Virus Warning
   • Urgent Message
   • Security Check Required Uncheck the suspicious calendar to stop the notifications temporarily.

2. Remove the Malicious Subscription

1. Open Settings
2. Scroll down → tap Passwords & Accounts (iOS 15+ users: Settings → Mail → Accounts)
3. Tap Subscribed Calendars
4. Tap the suspicious entry ("CLICK SUBSCRIBE" or similar)
5. Tap Delete Account
6. Confirm by tapping Delete Account

Once deleted, all spam events disappear instantly.

Solution 2 — Remove It Through iCloud (Alternative Method)

If Solution 1 does not show the malicious calendar:

1. Open Settings
2. Tap your name (Apple ID banner)
3. Tap iCloud
4. Toggle Calendar OFF then ON again

This forces your device to refresh your synced calendars.

Solution 3 — Safari Reset (Stops New Spam Pop-ups)

Calendar spam usually comes from a malicious Safari website. Reset Safari to block future fake "Subscribe" pop-ups.

1. Go to Settings
2. Scroll down → tap Safari
3. Tap Clear History and Website Data
4. Tap Clear History and Data
5. Scroll further down → tap Advanced → Website Data
6. Tap Remove All Website Data

This removes the malicious script that tricked you into subscribing.

Solution 4 — Disable Notifications Temporarily

If the spam is nonstop and you need peace before fixing it:

1. Go to Settings
2. Tap Notifications
3. Tap Calendar
4. Turn off:
   • Allow Notifications
   • Alerts
   • Sounds

This doesn't remove the virus, but it stops the spam while you're fixing it :-)

Do NOT Download Antivirus Apps from Ads

Calendar spam frequently tries to scare users into downloading fake antivirus apps such as:

• “iPhone Cleaner Pro”
• “Virus Removal Tool”
• “Security Booster”
• “Update Required”
• “Phone Protection App”

Preventing the Spam in the Future

• Avoid clicking suspicious pop-ups!¹
• Keep iOS updated²
• Disable pop-ups³
• Enable Fraudulent Website Warnings⁴

These built-in protections stop most calendar scam attempts.

Conclusion

And that's it! You've successfully removed the dangerous calendar spam from your iPhone. This issue is extremely common, but fortunately very easy to fix once you remove the malicious subscribed calendar.

To avoid this in the future, never accept unknown calendar subscriptions and always keep Safari protections enabled.

Thanks for reading! For more cybersecurity tips and mobile malware removal guides, check out my YouTube channel.

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Footnotes

1. If a website asks you:

   “This site wants to Add a Calendar Subscription”

   Always tap Don't Allow unless you trust the site. ↩

2. Go to Settings → General → Software Update ↩

3. Safari → Settings → Block Pop-ups (should be ON) ↩

4. Safari → Fraudulent Website Warning (should be ON) ↩