2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92178In this comment we point out that the 'quantum dialogue' (Phys. Lett. A (in press); quant-ph/0406130) can be eavesdropped under the intercept-and-resend attack. We also give a revised control mode to detect this attack.2 pagesQuantum PhysicsThe 'quantum dialogue' can be eavesdropped under the intercept-and-resend attacktext