In this article, I offer an outline of the papers comprising the special issue. I also provide a brief overview of its topic, namely, the friction between cyber security measures and individual rights. I consider such a friction to be a new and exacerbated version of what Mill called "the struggle between liberties and authorities," and I claim that the struggle arises because of the involvement of public authorities in the management of the cyber sphere, for technological and state power can put individual rights, such as privacy, anonymity and freedom of speech, under sharp devaluating pressure. Finally, I conclude by stressing the need to reach an ethical balance to fine-tune cyber security measures and individual rights.