Original sentence: Stuxnet is believed to be the first sustained effort  to destroy a  countries infrastructure through computer attacks
Edited sentence: On June 1, 2012, The New York Times revealed that the program used to sabotage the computer systems at Iran’s nuclear facilities was developed by the United States with the help of Israeli intelligence.Part of it became public after it accidentally unleashed the Stuxnet worm across the global internet.Stuxnet is believed to be the first sustained effort by one country to destroy another’s infrastructure through computer attacks.The program used to sabotage the computer systems at Iran’s nuclear facilities which carried the Stuxnet malware was known as "Olympic Games"