Weiner had made the mistake of posting pictures to his personal Twitter account leading to what first became known as Weinergate back in 2011. According to website "The Dirty," racy messages were also allegedly posted under a pseudonym. If a suspected sexter trying to remain anonymous were to post from a fake Twitter account, experts say, it would be far more difficult to uncover his identity and even harder to prove it. "Most social networking companies don't give [account] information out freely," Watkins said.
However, even a fake account used over and over might tip off PIs. If there were an e-mail address (real or fake) associated with the fake account, private investigators can set a trap that would have given the accountholder away. After an investigator sends out an e-mail to a suspect, they can use the service ReadNotify to figure out the IP address of where the suspect opened the e-mail. "If they're using a wired network and not using their cellphones, then [the location we get back] is usually pretty accurate," said Watkins.
Using a wired network almost seems antiquated in the age of smartphones. Many people access e-mail and other services over cell networks. Ed Opperman, the president of Opperman Investigations, said that cellphone users can still get caught if they're not careful. "If they open up the e-mail [on a phone], we might be able to get a phone number," he said. In addition, sometimes the phone number is linked to the app data the phone transmits.
Weiner might not have been all that careful, but ultimately, Opperman, who said he was involved in proving that Tiger Woods was unfaithful says though that even the most careful sexter can leave a trail, "One slip-up will bring everything down."