Hackear a conta de alguém: é pecado no judaísmo?

Judaism's category is straightforward: hacking is geneivah, theft, and the rabbis were strict about intangible taking. The Talmud holds someone liable as a robber for using another's property without permission even if nothing was permanently removed and even if value was returned (Bava Kamma 97b) — a rule that maps perfectly onto logging into someone's account 'just to look.' The tradition also pioneered privacy as a protected legal interest: harm by seeing (hezek re'iyah, Bava Batra 2b-3a) is actionable damage, so the mere reading of private correspondence is an injury independent of what is done with it. Maimonides codifies that theft of any magnitude transgresses a negative commandment, and Jewish law requires restitution — in modern application, notification, cleanup, and compensation. Where a real crime is suspected, halakha channels evidence to proper authorities, not to self-appointed investigators.