Updated

Hunter Biden has filed a countersuit against John Paul Mac Isaac, the computer repair shop owner who turned a laptop belonging to the president's son over to authorities and members of the press.

The lawsuit claims that Isaac illicitly distributed Hunter Biden's personal data and accuses him of six counts of invasion of privacy.

READ THE COUNTERSUIT - APP USERS, CLICK HERE:

The counterclaim was filed on Friday in a Delaware district court.

In 2020, Isaac said a man who he believed to be Hunter Biden dropped off three laptops at his store in April 2019, only one of which was salvageable. While repairing the laptop, Isaac said he discovered disturbing material.

HUNTER BIDEN SAGA: WASHINGTON POST AUTHENTICATES LAPTOP AFTER DISMISSING ‘FAKE’ SCANDAL IN 2020

John Paul Mac Isaac

John Paul Mac Isaac, owner of the Delaware computer repair shop Hunter Biden abandoned his laptop at in 2019. (Fox News Digital)

The customer did not return for the laptop within 90 days, and Isaac could not get in touch with him. Isaac said he first searched the emails by keyword in June or July 2019.

According to Isaac’s account, the FBI first made a forensic copy of the laptop, then returned weeks later with a subpoena and confiscated it. 

HUNTER BIDEN’S LAWYERS DEMAND CRIMINAL PROBE INTO LAPTOP LEAKERS, GIULIANI AND OTHERS, ADMIT LAPTOP IS HIS

Hunter Biden gets off plane with president

President Joe Biden and his son, Hunter Biden, step off Air Force One at Hancock Field Air National Guard Base in Syracuse, N.Y.  (AP Photo/Patrick Semansky)

When he stopped hearing from the FBI, Isaac said he contacted several members of Congress, who did not respond. At that point, his intermediary reached out to Rudy Giuliani’s attorney, Robert Costello.

Hunter Biden seemingly admitted that the laptop belongs to him in a February 2023 letter from his lawyers.

CLICK HERE TO GET THE FOX NEWS APP

Abe Lowell at John McCain's funeral

High-profile attorney Abbe Lowell has taken Hunter Biden as a client in his newly waged legal battle over his infamous laptop. ( Tom Williams/CQ Roll Call)

Biden's attorney, Abbe Lowell, wrote letters to the Justice Department and the Delaware attorney general on Feb. 1 calling for investigations into Steve Bannon, Giuliani and Isaac.

Biden's lawyers also sent cease-and-desist letters to others who obtained and disseminated the laptop's contents.

Fox News' Jacqui Heinrich, Tara Prindiville, Brian Flood and David Rutz contributed to this report.