Fifteen years after the clergy sex abuse scandal in the Roman Catholic Archdiocese of Boston broke into public view, hundreds of victims around the world continue to come forward, including some who say they were attacked as recently as 2001, advocates said Thursday.

Two victims’ support groups and a lawyer who has represented more than 2,000 survivors worldwide denounced church officials for doing too little to help those who were abused and to protect children from harm, despite ongoing revelations about the scope of the crisis.

“You have reportedly the most moral institution in the world acting the most immoral,” attorney Mitchell Garabedian said at a news conference Thursday in downtown Boston. “There is no excuse for it.”