Chofetz Chaim Daily 14 Kislev 10:1 Mutar to spread the injustice that ploni caused your friend IF it will help to right a wrong, or defame wrongdoers. 10:2 However you must fulfill 7 conditions: 1. absolutely factual 2. certain who the real villain is 3. rebuke perpetrator first 4. must not inflate crime 5. L’toeles & no personal benefit 6. first try other non LH solution 7. outcome must not be worse than Beis Din would mete out.
Chofetz Chaim Daily 15 Kislev 10:3 Continued from yesterday. Only mutar if speaker himself isn’t guilty of the same crime. 10:4 Considered l’toeles if purpose is to defame sinners provided that they aren’t tinokos shnishbu (lacking authentic Jewish upbringing). Asur to tell people that don’t think the injustice was wrong, because it will bring to rechilus. In scenarios that LH is mutar, it is a mitzvah to say. If asur, asur period.