The news came less than two weeks after details of the new Bond movie "Spectre", starring Daniel Craig and Christoph Waltz, were unveiled.
Eon Productions confirmed "that an early version of the screenplay for the new Bond film SPECTRE is amongst the material stolen and illegally made public by hackers who infiltrated the Sony Pictures Entertainment computer system."
It expressed concern that whoever carried out the hack could try and publish the "stolen" screenplay and vowed to take "all necessary steps" to protect their legal rights.
Hollywood giant Sony Pictures Entertainment has been hit by a string of embarrassing leaks following a huge hack, which some have blamed on North Korea after its anger at the forthcoming movie "The Interview", which lampoons its leader, Kim Jong-Un.
The leaks revealed a producer, Scott Rudin, describing Angelina Jolie as a "minimally talented spoiled brat" plus racially insensitive exchanges about US President Barack Obama between Rudin and co-chairwoman Amy Pascal.
"Spectre" is due to hit screens worldwide on November 6 next year and also features Monica Bellucci and Lea Seydoux.
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