German pharmacies stop issuing COVID vaccine passes after security breach

Update: I had originally linked to a report on Reuters. @Ju916 tweeted to me:

First of all those were no threat actors but security researches demonstrating problems of the system in good faith. Second: those digital certificates are just comodity items. The original document (a yellow vaccination passport) can replace them in any situation.

Because I’m no longer sure I have confirmation of claims, I’m deleting the post but leaving this here for transparency purposes.