Steve Marx – Medium

Steve Marx

Steve Marx
in
ConsenSys Diligence

Stop Using Solidity’s transfer() Now

This article was originally published at https://diligence.consensys.net. Please read it there, where it includes code examples and has…

Sep 2, 2019

Stop Using Solidity’s transfer() Now

Sep 2, 2019

Steve Marx
in
ConsenSys Diligence

Return Data Length Validation: a Bug We Missed

A rather serious vulnerability was recently found in the 0x v2.0 Exchange, a smart contract system that our team audited.

Jul 15, 2019

Return Data Length Validation: a Bug We Missed

Jul 15, 2019

Steve Marx
in
ConsenSys Diligence

A Case Against Inheritance in Smart Contracts

Reduce your use of inheritance in smart contracts and increase your skepticism when you see it.

Jul 1, 2019

A Case Against Inheritance in Smart Contracts

Jul 1, 2019

Steve Marx
in
ConsenSys Diligence

Provably Fair Ransom

Ransom has a trust problem. Suppose I’ve birdnapped your beloved pet parakeet and am demanding a $1,000 ransom to return the bird to you…

May 22, 2019

Provably Fair Ransom

May 22, 2019

Steve Marx
in
ConsenSys Diligence

Upgradeability Is a Bug

Feb 5, 2019

Upgradeability Is a Bug

Feb 5, 2019

Steve Marx
in
ConsenSys Diligence

Silent But Vulnerable: Ethereum Gas Security Concerns

Every transaction sent to the Ethereum blockchain requires a nontrivial amount of work to process. Gas is how that work is measured and…

Dec 18, 2018

Silent But Vulnerable: Ethereum Gas Security Concerns

Dec 18, 2018

Steve Marx

Steve Marx

Working on Ethereum smart contract security at @ConsenSys. Co-creator of https://www.site44.com and https://programtheblockchain.com .

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