MediaTakeOut.com learned that the LARGEST treasure trove of celebrity sextapes and nude photographs is up for sale.

Early this morning, MediaTakeOut.com was approached by a group claiming to have an EXTREMELY explicit sextape of Diddy and R&B singer Cassie. The group claims to have somehow "INFILTRATED DIDDY'S DEFENSES" and have his credit card information, his social . . . basically EVERYTHING!!!

But it gets even better. MediaTakeOut.com was also offered OTHER PICS. The group claims to have nude photographs of a number of OTHER celebrities - who reportedly sent pics to Diddy. The insiders will send us a COMPLETE list of all the celebs who are photo'd in compromising positions later today

We tend to NOT believe these type of stories. But TMZ reported this morning that Diddy is INVESTIGATING people who leaked his CREDIT CARD INFO online