Possibly, and perhaps her idiot husband inadvertently forwarded that data to his NC honey child. And there goes any pretense of secured documents.
Random thought. Perhaps the 15 y/o was not in fact a 15 y/o but a spy catfishing Weiner with the goal of getting inside info on Huma. She (or the male hacker/spy posing as her) sends photos with exploits embedded or links to a hacker site that would compromised his machine. He clicks, boom. Perhaps the NYC discovered this while analyzing his machine.
The pretense of secured documents was debunked long before that. (His NC honey is probably the safest location such docs would have had since first sent to Hill.)