DEV Community • 2026-04-24 15:21

OWASP 2026 Smart Contract Vulnerabilities: Access Control (SC01:2026) Analysis

Access control failures represent the highest-severity class of smart contract vulnerabilities in the OWASP 2026 Top 10 list. These vulnerabilities occur when authentication and authorization mechanisms fail to properly restrict what users or roles can do within a contract, leading to unauthorized state changes, fund theft, or protocol manipulation. Unlike traditional web application security wher...

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DEV Community • 2026-04-24 15:18

AI治理最重要的能力：缺乏证据支持时懂得暂停

1）观点先行（P0） 一句话观点： 在 AI 协作里，最有价值的治理能力不是“更快修完”，而是“证据不够时敢停下，并把缺什么证据说清楚”。 2）治理背景（P1） 复杂系统里的真实问题，不是没人干活，而是大家都在干活，却很难判断到底有没有真的完成。 AI 参与后，这个问题会更明显： AI 很容易给出“看起来已经完成”的答案。 多个智能体并行提交回执，信息会很快变成噪音。 模块测试通过，常常被误读成系统已经恢复。 本地治理体系之所以更快，不是因为流程更短，而是因为它把“没完成”这件事制度化了： 可以停在中间状态。 可以明确写出阻断原因。 可以等证据补齐后再推进状态。 3）信号提取（P0） 从本地审计材料里，最有价值的信号不是某条报错，而是下面这些重复出现的模式： 模式一：技术验证通过，但...

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Hacker News • 2026-04-24 15:17

Show HN: TurbineFi – Build, Backtest, Deploy Prediction Market Strategies

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Frontend Masters Boost RSS Feed • 2026-04-24 15:11

Auto `sizes` on Images

Hand-writing/maintaining a sizes attribute is just not going to happen. This is the way.

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HackerNoon • 2026-04-24 15:11

Janice McAfee Announces John McPepe Launch Party Featuring Musicians, Artists and Freedom Fighters

The John McPepe meme coin project has officially announced their launch party in Las Vegas, marking a historic intersection of internet meme culture and the defiant legacy of JOHN MCAFEE. The launch is planned for April 29th with a series of events in Las Vegas, including Afroman, Shooter McGavin, Riff Raff, Bobby Shmurda, and many more! John McPepe serves as a tribute to the spirit of freedom and...

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DEV Community • 2026-04-24 15:11

I Built a Chrome Extension That Adds Playback Speed and Picture-in-Picture to Japan's Free Streaming Service

TVer is Japan's official free streaming platform — catch-up TV for every major broadcaster. It's the legal, ad-supported way to watch NHK, TBS, Fuji TV, and others without a cable subscription. It's missing two features I use on every other video platform: playback speed control and Picture-in-Picture. So I built TVer Plus to add them. Why These Two Features? Playback speed is the fe...

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DEV Community • 2026-04-24 15:09

I Built a Multi-LLM Debate Engine That Fact-Checks Itself in Real Time

When you ask one LLM a question, you get one answer. When you ask five LLMs the same question, you get five answers and no way to tell which is right. The naive fix — make them vote, or make them argue, or summarize them all — turns out to make things worse, not better. LLMs are prone to sycophancy; when one confidently states a wrong fact, the others tend to concede rather than push back. Add a ...

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DEV Community • 2026-04-24 15:09

Desplegar OpenClaw en AWS Lightsail sin sufrir 😎

Si deseas desplegar OpenClaw en AWS Lightsail de manera simple, sencilla, repetible y sin pelear con pasos manuales, una buena opción es usar AWS CDK + Python + uv. En este tutorial te muestro cómo levantar toda la infraestructura con Infrastructure as Code. 🦀 OpenClaw + AWS Lightsail + IaC ¿Por qué automatizar esto? Porque hacerlo a mano una vez está bien, pero repetirlo muchas vec...

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DEV Community • 2026-04-24 15:08

Why I built a Zero-Trust Proxy for my AI-controlled Robot 为什么我要为我的 AI 控制机器人构建零信任代理

Tags: #opensource #go #robotics #ai #embedded We are officially in the era of "vibe coding." AI agents and LLMs are writing code, managing workflows, and executing complex software tasks at blistering speeds. It's an incredible time to be a developer. 我们已经正式迈入了“Vibe Coding”的时代。AI 智能体和大型语言模型正在以惊人的速度编写代码、管理工作流并执行复杂的软件任务。对开发者来说，这是一个不可思议的时代。 But what happens when you take that AI out of the browser...

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DEV Community • 2026-04-24 15:06

Consistent Project Scaffolding at Scale with structkit

Consistent Project Scaffolding at Scale with structkit Every engineering team eventually hits the same wall: onboarding a new service takes half a day of copying files, hunting down the right .gitignore, figuring out which CI template is current, and hoping the intern doesn't miss the security scanning step. The solution is usually a wiki page nobody reads, a "golden repo" that's three ...

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DEV Community • 2026-04-24 15:04

[PT-BR] Guia de Módulo OpenTofu AWS EC2: Requisitos, Testes e Estratégia BDD

Introdução A criação de módulos reutilizáveis para provisionamento de instâncias EC2 na AWS é uma prática essencial para equipes que buscam infraestrutura como código (IaC) consistente, segura e escalável. Um módulo bem‑escrito vai além da definição de recursos, exige planejamento de requisitos, suíte de testes automatizados e abordagem orientada ao comportamento (BDD) para garantir qu...

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DEV Community • 2026-04-24 15:03

SecurityHeaders.com API Is Gone — Here's the Migration

If you have CI/CD pipelines or scheduled audits built on api.securityheaders.com, now is the time to migrate — the API has been discontinued and no new or renewed subscriptions are being issued. Better to move before your key stops working than after. The SecurityHeaders.com API has been discontinued — no new subscriptions, no renewals. The free web UI at securityheaders.com is still live, but if...

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Add Authentication and SSO to Your Flet App
DEV Community • 2026-04-24 15:00

Add Authentication and SSO to Your Flet App

This blog was originally published on Descope. Creating cross-platform applications has become much easier with frameworks like Flet. Flet allows developers to build modern web, desktop, and mobile apps using Python. Its simplicity and flexibility help developers focus on creating great user experiences without having to worry about platform-specific complexities. However, as your application gr...

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HackerNoon Projects of the Week: MetaCoreX, ZKX Helix, and Tripvento
HackerNoon • 2026-04-24 14:58

HackerNoon Projects of the Week: MetaCoreX, ZKX Helix, and Tripvento

This edition of Projects of the Week highlights three standout builds from the Proof of Usefulness Hackathon: MetaCoreX, ZKX Helix, and Tripvento. Each project demonstrates practical value by addressing real-world problems: from secure peer-to-peer transactions to interactive learning tools and real-time data observability, reinforcing the importance of building products grounded in actual utility...

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DEV Community • 2026-04-24 14:56

How I hardened my multi-agent AI support copilot

The first post in this series was about the design. This one is about what happened when the first real tickets hit the wiring, and about the hardening work that followed once those runs exposed the weak spots. The good news is that the architecture mostly held up. The orchestrator-worker model was still the right shape. Parallel evidence gathering still made sense. Shared incident context still ...

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Hacker News: Front Page • 2026-04-24 14:55

Researchers Simulated a Delusional User to Test Chatbot Safety

Article URL: https://www.404media.co/delusion-using-chatgpt-gemini-claude-grok-safety-ai-psychosis-study/ Comments URL: https://news.ycombinator.com/item?id=47891147 Points: 7 # Comments: 1

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Cascading Style Sheets • 2026-04-24 14:55

Multi-stroke text effect in CSS

submitted by /u/bogdanelcs [link] [comments]

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DEV Community • 2026-04-24 14:54

How I Built an Automated JS/TS Repository Analyzer in C#

TL;DR I built the JavaScript/TypeScript analysis engine for the Silverfish IDP — an Internal Developer Portal that automatically detects packaging tools, identifies component types, and extracts complete dependency graphs from repos. It handles monorepos, multiple lock file formats, and mixed JS/TS codebases—all without making assumptions about repo structure. The Problem At...

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RSA-OAEP Encrypt-then-Sign Messaging Tool
DEV Community • 2026-04-24 14:54

RSA-OAEP Encrypt-then-Sign Messaging Tool

Machine Problem 2 Group Members: Deen, Ligero, Torres Introduction This machine problem involved designing and implementing a secure messaging system using public-key cryptography. Unlike the previous exercise—where the goal was to break a program's security—this one required building security in from the ground up. The objective was to construct a command-line tool that allows users...

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DEV Community • 2026-04-24 14:52

RFC 9880 and the IoT Validation Problem: From Standards Fragmentation to a Device-Model Compiler

RFC 9880 and the IoT Validation Problem: From Standards Fragmentation to a Device-Model Compiler The Internet of Things has a data-model problem that no amount of protocol engineering can fix. RFC 9880's Semantic Definition Format offers a way out — but only if we treat it as a language to compile, for data validation, not only as a document to read. TL;DR — IoT devices speak fiv...

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