Among the most wicked people in the sight of Allah on the Day of Judgment is the man who has sexual intercourse with a woman and then divulges her secret. [Muslim]

"«إِنَّ مِنْ أَشَرِّ النَّاسِ عِندَ الله مَنزِلَةً يَومَ القِيَامَةِ الرَّجُلَ يُفضِي إِلَى المَرْأَةِ وَتُفْضِي إِلَيه، ثُمَّ يَنشُرُ سِرَّهَا». [صحيح.] - [رواه مسلم.]"