New iOS 18 security changes may affect your account

Same here. This message was vague in terms of what could happen.

We're an enterprise account with one team ID, but multiple developer accounts. 99.9% of the time our builds are generated using the same Apple ID using Fastlane. If a different developer account was used to sign our app would that cause an issue?

We also have an enterprise account with only one team and all the builds have been created using the same developer ID ever since. Since the last week, our users have not been able to install or start the app because of the following error.

Unable to install the {Appname} The app cannot be installed because its integrity could not be verified.

Is it related ? What do we need to do ?

We also received the following email

"If you’re experiencing any issues getting your enterprise app to load, we recommend that you contact our support team to request that each of your accounts be assigned a unique team name, then generate new developer certificates and provisioning profiles for each account. Once this is done, you’ll be able to load your apps with the new provisioning profiles and distribute them as you have before."

Incidentally, the email sent to the embedded address (adev_escalations at apple.com) is bouncing back.

When I trying to reach out via the support team email address provided in that mail, the mail server couldn't find that address. I have one enterprise account and one App Store account under same team name. My apps run fine so far but I am quite worry if my production apps would suddenly stop working.

Attachment is the message from my mail server when I reached out for Apple support team.