PANews reported on October 22 that according to The Block, after being criticized by LayerZero Labs CEO Bryan Pellegrino, Across Protocol co-founder Hart Lambur proposed on Monday night to permanently limit the supply of ACX tokens to 1 billion. If the proposal is approved by the Across community, Across Governance will also give up its ownership of ACX tokens and set them to 0x0 - preventing any future changes to the token supply through casting or destruction.

Previously, Pellegrino pointed out that there were "serious problems" with the Across token contract. However, this move was opposed by the community, who believed that this was more of a transparency issue than a security vulnerability. Pellegrino stated: "You mistakenly exposed the internal private function (used to destroy tokens) written by OpenZeppelin in its ERC-20 token implementation and gave it to your contract owner-this allows you to withdraw (destroy) tokens from any wallet at any time and arbitrarily return any account to zero." He also claimed that the cross-protocol and UMA protocol contracts can mint tokens indefinitely, and suggested that in order to solve this problem, ownership should be transferred to an immutable smart contract to prevent the minting of tokens exceeding the total supply, not allow destruction, and not transfer ownership.

Lambur initially refuted Pellegrino’s allegations, but later admitted that while Pellegrino was wrong to believe that its ERC-20 implementation had serious vulnerabilities, “the design choices were wrong,” adding that the proposal was made in the “spirit of decentralization and transparency.” The proposal is currently undergoing a temperature check vote, with 99.5% in favor of setting a supply cap.