This category for all Secondary Schools in Malaysia. When it is necessary to breakdown the sites by states, those subcats will be in the relevant states, linked from here.
Necessary standard abbreviations used in titles include:
SM - Sekolah Menengah (Secondary School)
SMK - Sekolah Menengah Kebangsaan (National Secondary School)
SMV - Sekolah Menengah Vokasional (Vocational Secondary School)