Iranian government-supported hackers have reportedly tried to break into the personal emails of American officials and international nuclear experts. The Associated Press, or AP, reported on the attempted attacks Thursday. The AP’s report was based on information collected during an investigation by the internet security company Certfa, which is based in London. AP said the group, known as Charming Kitten, is believed to have tried to break into the private emails of more than 12 U.S. Treasury officials. The attempts took place over the past month. Other targets included well-known defenders, opponents and enforcers of an international nuclear deal signed in 2015 with Iran.