What is the legal ruling on using an internet friend to access websites that display indecent images, and how can he be helped to stay away from that?

It is not permissible to look at indecent images on the internet, in magazines, or elsewhere, because they are a means of deriving pleasure and perceiving the beauty of women, which could lead to temptation. This is based on the Almighty’s saying: "Tell the believing men to reduce [some] of their gaze and guard their private parts. That is purer for them." A friend can be helped to abstain from this by offering advice, instilling the fear of Allah in them, reminding them of the blessing of sight, and the obligation to show gratitude for it by not using it in what Allah has forbidden. Looking at these images brings regrets, the wrath of Allah, and wasted time, whereas the duty is to seek chastity through marriage, avoid bad companions, and occupy one's time with what benefits them in religious and worldly matters.