DIGITAL CITIZENSHIP AND RESPONSIBILITY IN E-WORLD

I am teaching in secondary school at Beaconhouse School System. Learners at my school are using technology since primary i.e. age 8. But still they do not abide by the ethics and netiquettes desired for appropriate technology use. Plagirasim (not mentioning sources), password theft, harsh and rude comments at blogs, deleting and tempering files, hacking accounts and deleting others work on interactive forums like mindomo is reported by teachers. What should be done to avoid it, change it and inculcate sense respect and responsibility?