4chan users appear to have struck again, this time targeting Snapchat selfies that were saved in third-party apps.

Hackers have reportedly collected a whopping 100,000 to 200,000 Snapchat photos and are threatening to post them online, according to Reuters.

While the whole thing could still be a hoax since no actual photos have been discovered yet, Snapchat holds itself blameless either way, citing outside apps as the issue.

"We can confirm that Snapchat servers were never breached and were not the source of these leaks," the company said in an emailed statement quoted by Reuters.

The collection of non-celebrity photos seems to have leaked from the accounts of people who used a mysterious third-party app called Snapsaved, which lets users store the ephemeral "snaps" that usually disappear in a few seconds.

"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," said a Snapchat spokeswoman, as quoted by the New York Times' Bits blog.

"We vigilantly monitor the App Store and Google Play for illegal third-party apps and have succeeded in getting many of these removed."

Based on the nature of Snapchat, one concern is that many of the hacked photos may be nude "selfies" taken by teenagers.

Snapchat, which reportedly turned down a $3 billion offer from Facebook last year, doesn't need any more bad publicity. The app headed by CEO Evan Spiegel has already been under fire for its questionable security and lackluster response to a white-hat hack last year that exposed millions of usernames and numbers.

The company is currently undergoing a round of funding that could bring it to a $10 billion valuation, Reuters reported.

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