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Announcement for Flash Loan Attacks Pancake Bunny

We are writing to share several facts about the economic exploit that crashed Pancake Bunny. The flash loan was caused by new smart contracts which HAECHI AUDIT team did not audit.

HAECHI AUDIT audits PancakeBunny smart contracts on 18th January 2021 and here is the report. This report warned the fact that there are non-audited and changeable external contracts, and the “helper” function is weak to flash loans’ attack.

After offering the auditing, the Pancake Bunny team upgraded v1 contracts to v2 and chose another partner for auditing. This flash loan was caused by new smart contracts we did not offer to audit.

We are sorry for what has happened this time, and we are ready to assist the Pancake Bunny team in solving the problem. Pancake Bunny team shared their post-mortem analysis here.

HAECHI AUDIT Official website: https://audit.haechi.io/

HAECHI AUDIT Twitter: https://twitter.com/haechi_audit


It is HAECHI AUDIT’s mission to help clients develop secure smart contracts by providing the most trustworthy security auditing services.

HAECHI AUDIT is a top smart contract security audit firm that consists of blockchain professionals. We provide the most secure smart contract security audit and smart contract development services to our global clients.

Our representative clients include 1inch.exchange, Pickle Finance, Harvest Finance, etc. We have been providing audit services with over +100 clients.

Trusted by the industry leaders, we have been incubated by Samsung Electronics and awarded the Ethereum Foundation Grants and Ethereum Community Fund.

Secure your smart contracts with HAECHI AUDIT.

Contact : audit@haechi.io




HAECHI AUDIT is the leading smart contract security audit company founded top security experts. Trusted by the industry leaders, HAECHI AUDIT has reached strategic partnerships with global Exchanges and the Fortune global 500 enterprises.

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