The case is already proving sensitive for European governments. For several days, countries have been confronted with the dissemination of false health vaccination passes. A phenomenon of which it remains difficult to measure the extent but which has already prompted several States, including France, to launch an investigation. Explanations. What happened ? For several days now some internet users boasted on forums and social networks to hold secret cryptographic keys used to generate a valid QR code of the European health pass. “Fraudulent manipulations” of which the European Commission admitted to be aware. As revealed Numerama , several sites allowing...