Hackers tied to the Iranian government targeted the personal emails of more than a dozen U.S. Treasury officials and other officials and individuals around the world linked to the Iran nuclear deal, according to an AP report.Details: The campaign used a relatively simple phishing technique to dupe users — one example cited by the AP involved spoofed Gmail security pages. The email addresses that were targeted surfaced after the hacking group, known as Charming Kitten, mistakenly left one of its servers open online last month. The AP reports that the cybersecurity group Certfa was able to tie Charming Kitten to Iran based on mistakes that showed the collective as operating within the country.