Angelina Jolie & Lady Gaga -- FINANCES EXPOSED By Celebrity Hackers

Angelina Jolie and Lady Gaga are the two newest victims of the celebrity hackers who had already exposed the financial secrets of Michelle Obama and Beyonce ... TMZ has learned.

The hackers returned to the Internet after a brief hiatus ... and immediately hit six more A-list victims, including Angelina, Gaga, NRA advocate Wayne LaPierre, Dennis Rodman, Michael Vick, Secret Service Director Julia Pierson and Robert De Niro.

The hackers have posted what they claim to be the social security numbers, mortgage amounts, credit card info, car loans, banking and other info for the celebs listed on their site.

The hackers' previous website was shut down by its host -- but it's now back up and running with a new domain extension (.re) that suggests it's based out of the French island of Réunion located off the coast of Madagascar.

Along with Beyonce and Michelle, the hackers previously hit names like Mel Gibson, Britney Spears, Ashton Kutcher, Hillary Clinton, Kim Kardashian, Arnold Schwarzenegger, Kanye West, Mitt Romney, and Tiger Woods.