the morality of the issue of releasing a worm

the morality of the issue of releasing a worm
The example of releasing a worm given in the text is the situation where Morris stated his goal was to see how many Internet computers he could infect with the worm. He was not thinking about the computers he would crash and that data that would be lost.

Consider the morality of the issue of releasing a worm. Is Morris’s release of a worm morally justifiable according to Utilitarian ethics?