There is this: https://www.pitlock.de/en/shop/new-pit-stopper-antitheft-for-all-bicycle-components-with-allen-screws/pit-stopper.html
It's worth finding the pitlock thread on here.
@amey started
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There is this: https://www.pitlock.de/en/shop/new-pit-stopper-antitheft-for-all-bicycle-components-with-allen-screws/pit-stopper.html