An Iranian hacking group tried to go after the WhatsApp accounts of staffers in the administrations of President Joe Biden and former President Donald Trump, Meta Platforms said Friday. Meta said it discovered the network of hackers, who posed as tech support agents for companies including AOL, Microsoft, Yahoo and Google, after individuals who received the suspicious WhatsApp messages reported them. A statement Friday from Meta said that the hackers had tried to target the WhatsApp accounts of individuals in the Middle East, the United States and the United Kingdom, as well as political and diplomatic officials. U.S. intelligence officials say Iran’s increasingly aggressive use of cyberattacks and disinformation has several motives: to confuse and polarize voters in an effort to undermine confidence in U.S. democracy, to erode support for Israel, and to oppose candidates that it believes will increase tension between Washington and Iran.