Security Protection Center scam won't stop

The problem that you describe likely being very easy to resolve.

It is highly probable that an inadvertent click on a website link has “subscribed” an additional (unwanted) Calendar to your device - and this unexpected Calendar is exposing unwanted calendar events and sending you unexpected “virus” or other warnings. 

Given that infecting a non-jailbroken iPad/iPhone with actual malware is incredibly difficult, this technique is employed by malicious Actors to fool or encourage you into doing something untoward - more often than not, parting with personal or financial information leading to fraud or attempted extortion.

Let’s check for what’s out of place...

• iOS/iPadOS 13 and earlier: Settings > Passwords and Accounts
• iOS/iPadOS 14-17: Settings > Calendar > Accounts
• iOS/iPadOS 18: Settings > Apps > Calendar > Calendar Accounts

Look for an “account” that shouldn’t be in the list of accounts - as this will likely include the Calendar that contains all the unwanted events. When you find the suspect account, tap - then select Delete Account. This should resolve the problem in its entirety.

I hope you find this helpful in finding the source - and in resolving the issue if an unexpected Calendar is found.

I am having the same issue, but I do not have any unknown accounts.

You're very welcome.

If the identified account does not correspond to an email address that you use, it is almost certainly the source of the unwanted pop-up messages or reminders.

When viewing email, messages or websites, be careful to verify embedded links before opening them.

Try using a different browser (ie. Brave, Chrome, Safari, Edge)