Before releasing Tribler 7, we should check the signing process of the .exe on Windows and the .app on macOS.
The .exe on Windows is now signed (don't mind the version; it's because the tags on my Tribler fork are off):

Signing of the Mac .app will be deferred to the 7.1 release.
We successfully signed Tribler.app with my developer credentials, using the codesign tool. Since I do not want to use my own private key to do this, we should check whether the TU Delft has an Apple Developer account, or create one for the Tribler team.
I stil haven't heard anything back from our ICT department. I will move this issue to backlog since I do not expect that we will get a valid signing certificate anytime soon.
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The .exe on Windows is now signed (don't mind the version; it's because the tags on my Tribler fork are off):