What is the legal ruling on giving the internet password to a female relative who shares photos of her female relatives, knowing that she has sent photos showing parts of their 'awrah, despite my warning her?

It is impermissible to send pictures that show the 'awrah (intimate parts), especially the 'awrah of women, to those for whom it is unlawful to look at it. Aiding in sin is considered a sin itself. The questioner should denounce her relative's action and offer her advice. If there is a concern that her relative might misuse the internet for a reprehensible act, then it is impermissible to leave the password with her; rather, it must be changed. As for permissible pictures of women, it is not forbidden to send them if there is assurance that no one for whom it is unlawful to view them will see them, though avoiding it altogether is more cautious. There is no sin upon the questioner for what happened in the past because her relative informed her that the pictures did not show 'awrah and would not be seen by men.