On me prévient que ce certificat n'est pas fiable. J'ai trouvé une réponse de la communauté en 2021 qui disait que le bug serait corrigé avec la nouvelle version 11.1 mais j'ai Séquoia 15!!! Je fais quoi?
iMac 24″, macOS 15.0
It seems that Apple has possibly re-introduced the bug. But the last time, most everyone was encountering the problem. This go around, something likely failed during the upgrade to Sequoia and there may be far fewer people impacted.
First try creating a new user account and login to test if the problem occurs for the new user account. If not, then it's something in your user account. If the problem is duplicated with the new account. Then it's a system level problem and not a user problem.
To ensure macOS Sequoia is installed and nothing interferes you can boot into Safe Mode so nothing is running in the background that might interfere with the installation process.
You can try re-installing Sequoia while booted into Safe Mode:
Start up your Mac in safe mode - Apple Support
Open Terminal and type the command below:
softwareupdate --fetch-full-installer
Run the Install macOS Sequoia from /Applications install over your existing Macintosh HD.
It seems that Apple has possibly re-introduced the bug. But the last time, most everyone was encountering the problem. This go around, something likely failed during the upgrade to Sequoia and there may be far fewer people impacted.
First try creating a new user account and login to test if the problem occurs for the new user account. If not, then it's something in your user account. If the problem is duplicated with the new account. Then it's a system level problem and not a user problem.
To ensure macOS Sequoia is installed and nothing interferes you can boot into Safe Mode so nothing is running in the background that might interfere with the installation process.
You can try re-installing Sequoia while booted into Safe Mode:
Start up your Mac in safe mode - Apple Support
Open Terminal and type the command below:
softwareupdate --fetch-full-installer
Run the Install macOS Sequoia from /Applications install over your existing Macintosh HD.
If nothing works, you may need to wait for Apple to fix it with another update. You can contact Apple for support and they may be able to find the root cause.
Basic Attestation User Sub CA1 ???