I'm a daily eBay user, and was incredibly disappointed today upon updating the app to discover that eBay has chosen to adopt the Play Integrity API, specifically blocking users of GrapheneOS, which includes me! As a result I've had to uninstall the latest version of the app, and reinstall the version before this change was rolled out.
I'd like to request that the banning GrapheneOS be reveresed - as it's a much more secure OS than standard Android versions that have long since stopped receiving security updates.
If you truly want to enhance the security of the devices to which eBay is installed upon, then you can use the hardware key attestation API to verify that a device is running GrapheneOS to permit it alongside an OS licensing Google apps as you do with the Play Integrity API already.
Sadly as a result of this ban, eBay is effectively enabling Google's anti-competative business practices rather than security.
The OS producer has derailed information available here, if someone from eBay is reading this and can share this information with your security/app team it would be greatly appreciated.
I hope by me posting here it can be seen that I'm trying to help improve security for your customers above all else, without excluding those who happen to be using the most secure Android OS available.
Many other companies who started a ban in this manner have reveresed their original decision. I hope that eBay will consider doing the same.
https://grapheneos.org/articles/attestation-compatibility-guide
