Homeland Security is Handling Leslie Jones' Cyber-Hacking Case

Leslie Jones' hacking situation is so bad the U.S. Dept. of Homeland Security has their top cyber-crimes unit on the case ... TMZ has learned.

As TMZ reported ... the FBI was accessing the case Wednesday after hackers posted nude pics of the 'SNL' star on her website, along with her passport, driver's license and other sensitive info.

We've learned the case is now with Homeland Security for 2 reasons -- it has one of the most sophisticated cyber-crime unit in the country, and Leslie has history with the Dept.

One source tells TMZ Leslie had some sort of problem with catfishing in the past, and Homeland Security investigated the case. There's some evidence a group from Japan may have been the culprit in the current case.

Leslie has remained silent since her website was hacked Wednesday.