Flash loans enable borrowing without collateral and repaying within a single transaction. While effective, they also introduce security risks – learn more here.
Research
The ack3 research hub.
Articles and research reports from the team.
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Straight from the work.
From the engineers who build Wake and run the audits.
A cross-chain reentrancy attack is an exploit that targets smart contract function calls. Learn about this vulnerability to keep your code safe from attackers.
A read-only reentrancy attack manipulate a smart contracts to extract value. Let's take a closer look at this vulnerability and how to prevent it.
Learn how manually guided fuzzing combines stateful, white-box testing with flows and invariants to test complex smart contracts more efficiently.
Safe Smart Accounts are the most audited and battle-tested smart contracts on Ethereum securing over $100 billion in assets. The Safe Social Recovery Module is a…
This research article reviews how cross contract reentrancy attacks work, an attack example, and guidance on how to prevent cross contract reentrancy attacks.…
What is a cross function reentrancy attack? Cross-function reentrancy attacks use multiple functions to execute the attack, which can occur when inappropriate…
![The vulnerable Vault withdrawal code beside a recursive call-stack graph showing repeated withdraw frames reading the same balance before any frame reaches balances[msg.sender] equals zero.](/_astro/hero.BjCEFGsd_2u77Pn.png)
What is a reentrancy attack? A reentrancy attack is very specific to smart contracts due to the nature of external calls. When a contract interacts with another…