Edward Majerczyk notoriously obtained naked images of Oscar-winning actress Jennifer Lawrence and model Kate Upton.
Authorities believe Majerczyk and Collins did not work together despite carrying out similar crimes.
Hacking of celebrity accounts has become more popular in recent years.
He admitted using that information to steal information from his victims, including their private nude photographs and private videos.
In August 2016, 28-year-old Edward Majerczyk of Chicago, agreed to plead guilty to a similar phishing scheme, although authorities believe he worked independently and he was not accused of selling the images or posting them online.
Various naked celebrities are photographed taking selfies with Android devices and webcams.
Ultimately, the images were widely circulated online via other channels, including and.
Herrera had accessed the accounts of unnamed celebrities and others but was not accused of being involved in leaking or sharing the photos and videos he obtained.