Decentralized exchange (DEX) Clipper has clarified that a vulnerability in its withdrawal function led to the recent hack of its protocol, which cost $450,000, rather than the private key leak claimed by a "third party". Clipper said in a Dec. 1 X post that the attackers took advantage of two liquidity pools on Dec. 1, locking in about 6 percent of the total value. It added that no other pools were affected and the breach was closed. Clipper wrote: "There have been claims of private key leakage by third parties. We can confirm that this is not the case and is inconsistent with Clipper's design and security architecture."