“We are organizing a broadband international conference on quantum communication and security in the center of Paris on 16-20 March 2026 (starting at 14h on Monday 16 and finishing at 12h30 on Friday 20). This joint initiative between our research network on quantum technologies QuanTiP and the MSCA project QSI will feature fantastic and pedagogical keynote-tutorial and invited talks on topics ranging from post-quantum cryptography, experimental and theoretical QKD, quantum cryptography beyond QKD and quantum networks”