An unconfirmed security breach surrounding the photo-sharing app Snapchat has allowed an anonymous hacker to gain access to a reported 200,000 images.

Earlier this week, an anonymous poster on the message board 4chan announced that he had gained illegal access to user accounts on Snapsave, a service which allows users to save permanent copies of their Snapchat photos. Called "The Snappening," the poster promised to release the entirety of his stolen images — many of which are reported to contain nudity — on 4chan this Sunday.

Snapchat has responded with an official statement stating that its servers remain secure.

"We can confirm that Snapchat's servers were never breached and were not the source of these leaks," according to the statement. "Snapchatters were victimized by their use of third-party apps to send and receive Snaps, a practice that we expressly prohibit in our Terms of Use precisely because they compromise our users' security."

The cellphone app Snapchat allows users to take and share images and video that are deleted after a predetermined amount of time. While users who receive images are able to take screenshots of their pictures, the app itself does not store or preserve any of the images.

The news was initially reported by blogger Kenny Withers, who posted details and coverage of the event on his blog. However, both the original 4chan post announcing the leak and Withers' blog are currently offline. Business Insider has posted screenshots of the alleged conversation and the database containing the images, but no photos have been leaked to the public as of yet.

This is not the first time Snapchat has endured the attention of hackers: On Jan. 1, 4.6 million phone numbers and usernames were stolen from the company's database, information which was later used in February to send thousands of users' images of fruit smoothies and a link to the website

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