Apology Letter For Sharing On Social Media

Dear {Recipient},

I'm sorry I shared your {personal photos/private messages/etc.} on social media without your permission. I never meant to violate your privacy; I just thought it would be nice to share those {photos/messages/etc.} with other people. Now I know that not everything is meant to be shared for everyone to see. I have deleted the post and won't repeat my mistake again.

{Your Name}