Posts tagged smart contracts

Reentrancy bugs are difficult to catch. This distilled, illustrative example shows how even a diligently-written contract with invariant checks can go wrong.
We describe a general Decentralized Escape Hatch mechanism, suitable for DAOs and other smart contracts.
Our discovery of a DoS vulnerability in Ethereum turns out to be a point of strength and censorship resistence for the currency.
We just published a draft article, urging a moratorium on The DAO until some security patches can be applied.