Investigators determined it was a hoax, finding zip ties and duct tape in her car, as well as text messages with a body modification artist that they say she paid to scar and scrape her.
Experts caution that anyone with the right software can clone voices in just a matter of seconds.
Several school districts across New Jersey received threatening phone calls on Friday that were found to be hoaxes.
Last week, Papini, 40, owned up to her lies pleading guilty to one count of making false statements and one count of mail fraud. She was sentenced to 18 months in federal prison, double the amount of time requested by federal prosecutors.
Conspiracy theorist Alex Jones testified in a Connecticut courtroom Thursday in a second defamation trial to determine what the InfoWars host should pay to Sandy Hook families.
The 18-month sentence is more than what the state recommended.