I'm developing a file access control system. In order to protect the file content copied out, I'm finding a way to deny user copy file content to other files. I know there are data transmission between the copied application and pboard service by XPC. But I don't know how to interrupt the data transmission. Or I can do something to stop the copied data send to the Clipboard. So is there any way to prevent the contents of a file being copied?

I'm try to monitor all processes by ES client. But I found the process name is different from the Activity Monitor displayed. As shown in the picture below, there are ShareSheetUI(Pages) and ShareSheetUI(Finder) processes in Activity Monitor, but I can only get the same name ShareSheetUI, I thought of many ways to display the name in parentheses, but nothing worked, so there is a way to display the process name like Activity Monitor?

When I'm using Endpoint Security to monitor the file creation behavior of Keynote, I've noticed that when I choose to export a Keynote file as an HTML file, ES only triggers the ES_EVENT_TYPE_NOTIFY_CREATE notification for the index.html file, and the ES_EVENT_TYPE_AUTH_CREATE is not triggered. I've double - checked my code many times, and I'm pretty sure there's no error in it. Does ES only call the notification event without calling the authorization event under certain circumstances? Or is this a bug in ES?

I'm writing an app on macOS that stores passwords in the Keychain and later retrieves them using SecItemCopyMatching(). This works fine 90% of the time. However, occasionally, the call to SecItemCopyMatching() fails with errSecAuthFailed (-25293). When this occurs, simply restarting the app resolves the issue; otherwise, it will consistently fail with errSecAuthFailed. What I suspect is that the Keychain access permission has a time limitation for a process. This issue always seems to arise when I keep my app running for an extended period.

Will the ES_EVENT_TYPE_NOTIFY_OPEN event be called back when the user has already returned es_respond_flags_result(client, msg, 0, false) in ES_EVENT_TYPE_AUTH_OPEN? I believe the ES_EVENT_TYPE_NOTIFY_OPEN event should not be triggered if the user has already denied the open operation in the ES_EVENT_TYPE_AUTH_OPEN response handler. However, during my testing, ES_EVENT_TYPE_NOTIFY_OPEN was still being called even after I blocked the open process. Is this behavior correct?

According to Apple's development documentation, if I want to install an Endpoint Security system extension, I need to develop a host app that must be installed in the Applications directory. Now, I want to create an ES extension to protect users from accessing certain folders. However, I don't want a custom app to pop up asking the user to allow the installation of the ES extension. (To clarify, it's fine if the system authorization request dialog pops up, but I don't want the host app's UI to appear.) Is there any way to do this?