Taken from "The Star : 8 August 2010"
Social Networking sites such as Facebook and Twitter have allowed people to easily let others know what is on their minds. But users should be careful with what they post because the laws of the land apply to cyberspace as well.
1) Sedition Act 1948 (Akta Hasutan)
- Posting something that has a seditious tendency - for instance, inciting hatred against the Government or the administration of justice, or inciting racial unrest
2) Internal Security Act 1960 (Akta Keselamatan Dalam Negeri)
Where a person is detained to prevent him from acting in any manner prejudicial to the security of Malaysia - as used against blogger Raja Petra Kamaruddin
In general, defamation occurs when a statement soils the reputation of another person. There are two types - civil defamation under the Defamation Act 1957, and criminal defamation under Section 499 of the Penal Code
4) Copyright Infringement
This is where the work of another is reproduced in any form without the consent of the owner. It can apply to music, film, writings, photographs etc
5) Communications and Multimedia Act 1998
Sect 211 of the Act prohibits the provision of offensive content, while S233 provides for improper use of network facilities, which basically covers all manner of online activity.
6) Penal Code
Various sections apply, covering distribution of obscene materials, cheating and criminal intimidation.