Accessing pornography online, and commiting sexual acts, particularly via cellular phone, is a growing problem among high-school students. This study evaluates the implementation of transformational leadership in schoolsto address the problem IT-based pornography. Eight senior high schools in Sragen werepurposively sampled for this study, which involved a focus group discussion with informants comprising principals, teachers and students. The findings showed that principals have not implemented all the principles of transformational leadership in tackling the problem of cellular phones being used for pornography. Of the four transformational leaderships four out of the eight principals applied idealized influence; three applied inspirational motivation; none of the eight principals applied intellectual stimulation, and five applied individual consideration.