The French National Agency for the Security of Information Systems (ANSSI) has unveiled its 2026–2027 national cybersecurity roadmap, mandating a transition to post-quantum cryptography (PQC) for classified systems by the end of 2030. From 2030 onwards, only encryption products with post-quantum protection will be permitted. According to the timeline, government departments must complete an inventory of sensitive long-term data by the end of 2026 and identify affected encryption and digital signature systems by the end of 2027. ANSSI emphasizes that this initiative aims to mitigate the risk of 'harvest now, decrypt later' attacks.