[Updated – 2026-06-10 15:00 (KST)] This notice has been updated to include information on the resolution of the iOS 27 beta issue and the corresponding application steps.

We have identified an issue where apps using the AppSecurity iOS SDK may be blocked or terminated on iOS 27 beta due to a compatibility issue between our security policy and the new OS behavior.

This issue is caused by a configuration/policy compatibility problem and is not related to any external attack or malware.

However, as a result, app usage may be temporarily restricted for end users in certain environments.

Fix status

• Our development team updated the relevant security policy at 2:50 PM (KST).

• The fix has been verified, and this issue is now resolved.

What customers should do

• From 2:50 PM (KST) onward, you can continue to build and deploy your apps as usual.

• Any apps built after this time will automatically include the latest security policy.

• If you built an app before 2:50 PM (KST) and are still seeing issues on iOS 27 beta, please rebuild and redeploy your app with the latest configuration.

In parallel, our development team is continuing to analyze in detail why this specific policy conflicted with iOS 27, and we will use the findings to improve our rules and prevent similar issues in the future.

We apologize for the inconvenience and appreciate your understanding as we work to continuously improve our service.

Thank you.