content: Um, did you read the article?     Without speaking a word, a hacker could use that radio attack to tell Siri or Google Now to make calls and send texts, dial the hacker’s number to turn the phone into an eavesdropping device, send the phone’s browser to a malware site, or send spam and phishing messages via email, Facebook, or Twitter.     and  Sending out some electromagnetic waves could cause a lot of smartphones to call a paid number and generate cash.