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Beware of Undefined Behavior! — Underhanded Solidity Contest Winner 22

This year’s Underhanded Solidity Contest featured many great submissions highlighting quirks in Solidity which can bite developers and auditors. We are proud to be among excellent company as judges for this…

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TrueUSD ↔ Compound Vulnerability

TrueUSD (TUSD) is a stablecoin on the Ethereum blockchain. Until recently, it had multiple entry…

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TotalSupply Inconsistency in ERC1155 NFT Tokens

Article written by Matthias Egli, CTO of ChainSecurity

On November 1st, 2021, we reported a vulnerability to OpenZeppelin in which the totalSupply can appear lower than it actually is for ERC1155 NFT tokens. This affects…

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Ethereum’s Growth Pains: The Price of Success

Article written by Hubert Ritzdorf, Senior Engineer for ChainSecurity

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DeFi hacks in 2020, DeFi exploits, Decentralized Finance security, smart contract security, smart contract exploits, smart contract hacks, how much money was stolen in DeFi in 2020 ?, How much did DeFi hackers stole ?, is DeFi safe ?,

Is DeFi worth the risk?

DeFi, with its unbelievable returns and losses... What are the risks ? And how…

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Petar Tsankov in ChainSecurity

Release of Securify v2.0

We are happy to announce Securify v2.0, the new release of the popular…

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PolPatrol — Validator for Polkadot Runtimes

ChainSecurity is happy to release PolPatrol, an automated validator for testing the…

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ChainSecurity joins the Capital Markets and Technology Association

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The Dispatcher — First Line Of Defense In Any EOS Smart Contract

Back in September 2018, an attacker…

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Zero Gas Price Transactions — what they do, who creates them, and why they might impact Scalability

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