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Articles tagged with #web3

Cyber Apocalypse CTF 2025: Exploiting Rounding Errors in HeliosDEX
One of the blockchain challenges in Cyber Apocalypse CTF had the Solidity contract called HeliosDEX, a Solidity-based decentralized exchange allowing swaps of Ether for three ERC20 tokens (ELD, MAL, HLS) and a one-time refund of tokens for Ether. Loo...
Mar 26, 202511 min read85
Understanding Access Control Issues in Web2 and Web3
Introduction Access control can be defined as a data security process that regulates who or what can view or use resources in a computing environment. It is a fundamental concept in security that is crucial for protecting sensitive data, preventing u...
Jan 29, 20256 min read32

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