In order to avoid this, it is said that a ninja who acted as a liaison and watchdog would constantly observe the kunoichi, and if she showed even a slight sign of betrayal the ninja would kill her mercilessly.
それを防ぐために連絡役兼監視役の忍者が常に行動を監視し、裏切りの気配を見せたときには容赦無く殺害していたとも言われる。