An infinite mint attack happens when someone discovers a weakness in a token’s code or smart contract and uses it to create more tokens than intended. The attacker puts these extra tokens into the market, which usually causes the token’s price to drop quickly.
This type of attack occurs when the code that controls token creation can be fooled or changed, letting the minting function make a large number of tokens. The increased supply lowers each token’s value and can hurt both holders and the project itself.
Attackers search for weaknesses in smart contracts. Common issues include mint functions without proper access controls, stolen private keys, or upgrade systems that let someone swap secure code for a faulty or harmful version. Once they can mint tokens, attackers usually create many and sell them fast, which drives the price lower.
In one well-known case, an attacker got hold of private keys and changed the contract code to mint millions of new tokens. The attacker traded some of these tokens for other cryptocurrencies and sold the rest. The token’s price fell sharply after the supply increased so much.
When the supply suddenly increases, people lose confidence in the market. Traders and investors might hurry to sell, liquidity providers can be hurt, and on-chain numbers like market cap and circulating supply no longer match the project’s original plan. Some projects never regain trust after this happens.
Look out for sudden changes in circulating supply, strange mint transactions on the blockchain, or big transfers from addresses that shouldn’t be creating tokens. Block explorers and monitoring tools often spot unusual spikes in mint events or large transfers linked to new tokens.
Projects have a few ways to protect themselves. They can lock or limit mint functions to trusted addresses, set a maximum total supply, and require several people to approve changes to token rules. Regular outside code audits and careful key management make it harder for attackers to change contracts or use stolen keys. Some teams also use time locks on important functions so changes are visible and can be stopped before they take effect.
If minting abuse is found, teams usually freeze the affected contracts, warn exchanges and the community, and work with auditors to fix the problems. Sometimes, developers also work with other projects and services to track and recover stolen funds if possible. Sharing updates with the public helps calm fears while technical fixes are made.