The Quantstamp Blog

Quantstamp Announcements

How to Be an ETH 2.0 Validator on the Topaz Testnet

The Topaz Testnet is a public Ethereum 2.0 testnet created by Prysmatic Labs. It is a testnet version of Ethereum 2.0 Phase 0 which is planned to launch on mainnet later this year. Anyone can participate in the Topaz Testnet as a validator, and this article will walk you through the process.

May 28, 2020
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Quantstamp Announcements

Smart Contract Audit Cost

Quantstamp conducted over 120 audits and secured 2 billion USD worth of digital assets since we were founded in 2017. The purpose of this post is to explain the audit pricing process for potential clients.

May 22, 2020
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Quantstamp Labs

Securing Your DeFi Project Starts with Quality Testing

Tests are undervalued. Quantstamp secured over 2 billion USD worth of digital assets since 2017. Through our experience securing smart contracts, we noticed that developers highly underestimate the importance of test suites.

May 18, 2020
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Quantstamp Announcements

How the dForce hacker used reentrancy to steal 25 million

The hacker exploited a reentrancy vulnerability in order to manipulate Lendf.Me’s internal record of the hacker's collateral. After the hacker created this false collateral record, the hacker withdrew nearly all assets from the platform.

April 22, 2020
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Quantstamp Announcements

Quantstamp Joins DID Alliance

Quantstamp is proud to announce that it is joining the DID Alliance, an open industry association focused on the development and maintenance of new industry standards for interoperable decentralized identity. With Korean and Silicon Valley companies as founding members, DID Alliance aims to develop and distribute decentralized ID technology that benefits companies globally. 

April 21, 2020
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Quantstamp Announcements

Quantstamp Secures and Protects DAI Backstop Syndicate

DeFi community rallies to fill a shortfall forming the DAI Backstop Syndicate, protecting the DAI. Quantstamp provides smart contract coverage warranty via Chainproof while helping to secure the software with support from Maker.

April 8, 2020
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Quantstamp Announcements

Quantstamp Joins the #CryptoAgainstCOVID Alliance

Quantstamp is proud to announce that we are contributing to the Binance Charity Project, Crypto Against COVID. Donations made through this global campaign will be used to purchase medical equipment and supplies that will be distributed throughout countries that are currently most heavily impacted by the virus.

April 6, 2020
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Quantstamp Announcements

Quantstamp Joins MyID Alliance

Quantstamp is proud to join the MyID Alliance, a Digital ID initiative by ICONLOOP. As the world moves towards more online and less face-to-face interactions, Digital ID will be a key enabling technology. 

March 31, 2020
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Quantstamp Announcements

Market Dynamics of the 1st bZx Hack: Flash Loans and the Insolvent Loan

In this series, we describe the market dynamics of the 1st bZx attack so we can avoid attacks with market manipulation components in the future.

March 24, 2020
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Preview
What is a Re-Entrancy Attack?

What is a Re-Entrancy Attack?

Computer scientists say that a procedure is re-entrant if its execution can be interrupted in the middle, initiated over (re-entered), and both runs can complete without any errors in execution. In the context of Ethereum smart contracts, re-entrancy can lead to serious vulnerabilities.

Quantstamp Labs
August 19, 2019
Preview
Open Sourcing Our Bounty Protocol

Open Sourcing Our Bounty Protocol

We are open sourcing the code for our Bounty Protocol. A bounty protocol is a marketplace for developers to identify bugs in smart contracts that automation cannot detect. The Bounty Protocol has the potential to leverage software engineering talent from around the world to add an essential layer of infrastructure for blockchain security.

Quantstamp Labs
August 13, 2019
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Quantstamp Secures Binance's First Stablecoin

Quantstamp Secures Binance's First Stablecoin

Quantstamp, a Y Combinator-backed blockchain security company, recently completed the audit of leading global cryptocurrency exchange Binance’s GBP-backed stablecoin, Binance GBP (BGBP). The BGBP token joins other stablecoins in the market including Coinbase’s USDC, Facebook’s Libra, MakerDAO’s Dai, and Bitfinex’s Tether, and is one of the first major stablecoins to be pegged to the British pound.

Quantstamp Announcements
July 23, 2019
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Quantstamp Audits Ampleforth, a Digital-Asset-Protocol for Smart Commodity-Money

Quantstamp Audits Ampleforth, a Digital-Asset-Protocol for Smart Commodity-Money

Quantstamp recently completed an audit of Ampleforth, a digital-asset-protocol for smart commodity-money and the first IEO on Tokinex (Ethfinex/Bitfinex IEO platform).

Quantstamp Announcements
July 17, 2019
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Economics of the Quantstamp Security Network

Economics of the Quantstamp Security Network

This post will explain the economics behind how the Quantstamp Security Network currently is designed so we can understand how node operators can earn QSP and how much smart contract scans cost for users. The two major influences to the economics of the Quantstamp Security Network are the price floor, and supply and demand.

Quantstamp Labs
July 11, 2019
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Quantstamp Audits Kakao's Blockchain Platform Klaytn

Quantstamp Audits Kakao's Blockchain Platform Klaytn

Quantstamp, a Y Combinator-backed blockchain security company, has completed its audit of smart contracts for Klaytn, the blockchain platform created by Kakao, the operator of South Korea’s dominant messaging platform KakaoTalk. Built by GroundX, a Kakao subsidiary, Klaytn is a business-centric blockchain platform designed for mass adoption.

Quantstamp Announcements
July 9, 2019