The hacker, Christina Elizabeth Bankston, is reportedly the seem woman who was suspected of cyberstalking Kris Jenner.
In 2016, a grand jury indicted Bankston for allegedly hacking Jenner's iCloud and sending threatening text messages to her, family members including Caitlyn Jenner and her assistants.
According to court documents obtained by E! News, Bankston allegedly obtained Kourtney's username and password to gain access to her emails.
A hearing has been schedule for February 5.