Lev Parnas states here in a letter to James Comer that he and Giuliani were told a story by a Burisma businessman named Vitoli Prusch[sp?] who claimed that during a meeting between Hunter Biden and the Khazaksan minister of foreign affairs, he became extremely intoxicated [ed. with alcohol and drugs] and incapacitated. While he was out Russian FSB agents, Russian Secret Police and [Burisma CEO] Zlochevsky's team copied the contents of his Laptop which was then compromised and manipulated by Russian Intelligence.
Giuliani was told that the laptop had embarrassing photos, but there was no evidence of financial crimes on it. Parnas states that It was only later that the idea of "finding" proof of financial crimes was introduced. He doesn’t give the exact date that the copying took place although it seems to be early in 2019. This is on top of the fact that the GRU hacked Burima’s email accounts.