How to stop and/or delete ads that are suddenly appearing on my iPad calendar

Out of nowhere I have ads streaming across days on my iPad (iPadPro 16.6.1). They are what I would move into a spam folder in my email accounts. They don’t seem able to be simply deleted and rather than simply deleting them, I would prefer to stop them happening. I don’t want to eliminate my calendar app because of the history it gives me. Help!

iPad Pro, iPadOS 16

Posted on Oct 12, 2023 2:58 PM

Reply
4 replies

Oct 12, 2023 3:30 PM in response to Inquirer82

Expanding upon input from stedman1...


Calendar Infection


Whilst not a malware infection in the traditional sense, if this exploit is observed on your device, it is highly probable that you were manipulated (via a simple click on a website link) into “subscribing” an additional (unwanted) Calendar to your device - and this unexpected Calendar is exposing unwanted calendar events and sending you unexpected “adverts” or other warnings. 


If you see this issue, you’ll need to check for what’s out of place...

iOS/iPadOS13 and earlier: Settings > Passwords and Accounts

iOS/iPadOS14 and later: Settings > 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/if you find the suspect account, tap - then select Delete Account. This should resolve this specific problem in its entirety.



Malware


Other than compromised websites, a high percentage of exploits and threats to which you will inevitably be exposed will ultimately manifest via links, alerts and pop-up messages delivered via links embedded within email, messaging - and subscribed Calendars - these often being designed to scare the unwary into giving away sensitive information, or to fool you into doing something that you shouldn’t.


Due to the system architecture of iOS/iPadOS, unless jailbroken, your iPad is not susceptible to traditional malware infection per-se. However, as with all computer systems, there are still vulnerabilities and exploits to which you remain at risk.


Browser-based attacks can largely be mitigated by installing a good content and Ad-blocking product. Of those available, one of the best and most respected within the Apple App Store - explicitly designed for iPad, iPhone and Mac - is 1Blocker for Safari.

https://apps.apple.com/gb/app/1blocker-for-safari/id1365531024


1Blocker is highly configurable - and crucially does not rely upon an external proxy-service of dubious provenance. All processing takes place on your device - and contrary to expectations, Safari will run faster and more efficiently. 


Unwanted content is not simply filtered after download (a technique used by basic/inferior products), but instead undesirable embedded content blocked form download.


When using a good quality Content blocker, a high proportion of otherwise inescapable risk when using your Safari browser, or linking to external sources from email, is effectively mitigated before it even reaches you.


There are additional protections that can enhance protection further, such as using one of the better security-focuses DNS Services in preference to automatic DNS settings. This measure can either be set on a per-device basis in Settings, or can be set-up on your home Router. I recommend using one of the following services, for which IPv4 ad IPv6 server address are included here:


Quad9 (recommended)

9.9.9.9

149.112.112.112

2620:fe::fe

2620:fe::9


OpenDNS

208.67.222.222

208.67.220.220

2620:119:35::35

2620:119:53::53


Cloudflare+APNIC

1.1.1.1

1.0.0.1

2606:4700:4700::1111

2606:4700:4700::1001


Security focused DNS providers intentionally "sink hole" known bad or malicious websites and resources - this providing an additional layer of protection beyond that provided by your device and its Operating System. These DNS services will, when used alongside 1Blocker or other reputable Content Blocker, provide defence in depth.





This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

How to stop and/or delete ads that are suddenly appearing on my iPad calendar

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.