North Korea continued developing nuclear weapons and producing nuclear fissile material in 2023 and evading United Nations sanctions that aim to cut off funding for Pyongyang's nuclear and ballistic missile programs, according to an unpublished United Nations report seen by Reuters on Thursday. "After a record-breaking level of cyber thefts in 2022, estimated at $1.7 billion, DPRK (North Korean) hackers reportedly continued to successfully target cyber cryptocurrency and other financial exchanges globally," independent sanctions monitors wrote in the report to a U.N. Security Council committee. The monitors, who report to the council twice a year, have previously accused North Korea of using cyber attacks to help fund its nuclear and missile programs.