--- title: "#web3security articles | Hashnode" description: "Explore 10 articles tagged #web3security on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/web3security" --- Tag # #web3security 10 posts · 3 followers [Bolaji Daniel - D4N0](https://hashnode.com/@d4n0) · [Apr 13](https://hashnode.com/posts/owasp-top-10-for-defi-access-control-vulnerabilities-sc01-2026/69dd2450217f5dfcbd1e4ac0) ### [OWASP Top 10 for DeFi – Access Control Vulnerabilities (SC01:2026)](https://thisisd4n0.hashnode.dev/owasp-top-10-for-defi-access-control-vulnerabilities-sc01-2026?utm_source=hashnode&utm_medium=feed) Top 2026 DeFi threats revealed: How to prevent SC01 access control bugs, unauthorized privilege escalation, and protocol takeover attacks. 6 min read · [thisisd4n0.hashnode.dev](https://thisisd4n0.hashnode.dev/owasp-top-10-for-defi-access-control-vulnerabilities-sc01-2026?utm_source=hashnode&utm_medium=feed) [Pavel Eigensinn](https://hashnode.com/@kode-n-rolla) · [Nov 15, 2025](https://hashnode.com/posts/episode-4-side-entrance/6918957895069895fa41b212) ### [The One With a Side Entrance](https://kode-n-rolla.hashnode.dev/episode-4-side-entrance?utm_source=hashnode&utm_medium=feed) A subtle accounting bug where deposits and repayments blur — letting attackers slip in through a “side entrance”. 10 min read · [kode-n-rolla.hashnode.dev](https://kode-n-rolla.hashnode.dev/episode-4-side-entrance?utm_source=hashnode&utm_medium=feed) [corn](https://hashnode.com/@theboiledcorn) · [Sep 26, 2025](https://hashnode.com/posts/eip-7935/68d627ee9ba97ac5bec493fb) ### [EIP-7935: Ethereum’s Gas Limit Jumps to 60M](https://theboiledcorn.hashnode.dev/eip-7935?utm_source=hashnode&utm_medium=feed) Ethereum is preparing for one of its biggest base layer upgrades in years. As part of the Fusaka hard fork in December 2025, EIP-7935 will raise the network’s default gas limit from 36 million to 60 million. That’s a 67% boost in block capacity, open... 4 min read · [theboiledcorn.hashnode.dev](https://theboiledcorn.hashnode.dev/eip-7935?utm_source=hashnode&utm_medium=feed) [Pavel Eigensinn](https://hashnode.com/@kode-n-rolla) · [Aug 29, 2025](https://hashnode.com/posts/high-in-the-vault-on-aptos-when-an-address-parameter-leaks-the-secret/68b1bb43231df3ada901b998) ### [High in the Vault on Aptos: when an address parameter leaks the secret](https://kode-n-rolla.hashnode.dev/high-in-the-vault-on-aptos-when-an-address-parameter-leaks-the-secret?utm_source=hashnode&utm_medium=feed) Greeting 👋 Whoami 😎 Hi! I’m Pavel (aka kode-n-rolla) — a security researcher and penetration tester focused on web, cloud, and increasingly Web3. I’m committed to continuous learning and rigorous, hands-on practice. Lately I’ve leaned deep into blo... 11 min read · [kode-n-rolla.hashnode.dev](https://kode-n-rolla.hashnode.dev/high-in-the-vault-on-aptos-when-an-address-parameter-leaks-the-secret?utm_source=hashnode&utm_medium=feed) [hexbyte](https://hashnode.com/@hexbyte) · [Oct 13, 2024](https://hashnode.com/posts/ethernaut-ctf-series-05-token/670c1d8e1f5d63f2857c0297) ### [Ethernaut Series - 05 (Token)](https://blog.hexbyte.in/ethernaut-ctf-series-05-token?utm_source=hashnode&utm_medium=feed) Concept The emphasis of this level is on the concept of overflow and underflow which is a concern for contracts written in solidity version <0.8. Basically, there are different types of integer data type. For example, uint256, int256, uint8, int8. Ea... 2 min read · [blog.hexbyte.in](https://blog.hexbyte.in/ethernaut-ctf-series-05-token?utm_source=hashnode&utm_medium=feed) [Abdulsamad sadiq](https://hashnode.com/@OT41K1) · [Feb 26, 2024](https://hashnode.com/posts/ethernautlvl-5-too-small-too-big-arithmetics-wild-jig/65dbe73845f11032b6b6b007) ### [Ethernaut(Lvl 5): Too small, Too Big - Arithmetic's wild Jig](https://ot41k1.hashnode.dev/ethernautlvl-5-too-small-too-big-arithmetics-wild-jig?utm_source=hashnode&utm_medium=feed) Exploiting Arithmetic Overflow and Underflow errors in a smart contract 2 min read · [ot41k1.hashnode.dev](https://ot41k1.hashnode.dev/ethernautlvl-5-too-small-too-big-arithmetics-wild-jig?utm_source=hashnode&utm_medium=feed) [hexbyte](https://hashnode.com/@hexbyte) · [Nov 20, 2023](https://hashnode.com/posts/erc4626-plus-quirks/655b87ae2a142f993cd4f483) ### [ERC4626 & its quirks](https://blog.hexbyte.in/erc4626-plus-quirks?utm_source=hashnode&utm_medium=feed) ERC4626 is a new Ethereum standard for tokenized vaults. It provides a standard interface for developers to build yield-bearing vaults that represent shares of a single underlying ERC-20 token. It outlines an optional extension for tokenized vaults u... 9 min read · [blog.hexbyte.in](https://blog.hexbyte.in/erc4626-plus-quirks?utm_source=hashnode&utm_medium=feed) [Claire Charles](https://hashnode.com/@clairescode) · [Jul 10, 2023](https://hashnode.com/posts/getting-started-with-webacy-wallet-watch/64ac62295008bc65f98f9dd0) ### [Getting started with Webacy: Wallet Watch](https://blog.claire-me.com/getting-started-with-webacy-wallet-watch?utm_source=hashnode&utm_medium=feed) Wallet watch is a feature on Webacy that lets you monitor your wallet activity anywhere, anytime. 2 min read · [blog.claire-me.com](https://blog.claire-me.com/getting-started-with-webacy-wallet-watch?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/getting-started-with-webacy-wallet-watch/64ac62295008bc65f98f9dd0)