Disconnecting a Crypto Wallet Does Not Remove Smart Contract Token Approvals

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Many crypto users assume that ending a website session disconnects their wallet's permissions, but the two are separate. Token approvals recorded on-chain under ERC-20 standards can stay active after a user leaves a decentralized application. Some apps request allowances far larger than a single trade needs, and those leftover permissions may let a spender move tokens up to the remaining limit. Such allowances can become a risk if the spender is compromised or malicious, or if a phishing site disguised the approval as routine. Users are advised to review active allowances with a reputable checker and revoke any they no longer need.

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Japanese Filenames Broke a Mac App's Code Signature After DMG Copy

A Mac app was reported as damaged after distribution, with codesign verification failing on a sealed resource. The developer traced the problem to four Japanese filenames containing voiced sound marks, which were converted from NFC to NFD normalization when the app was copied from a DMG. Because the altered names no longer matched those sealed during signing, the signature check failed even though the names looked identical on screen. The fix bundles the Japanese-named files into a single ASCII-named file that is extracted on first launch with NFC-normalized names. After this change, code signature verification passed following the copy.

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ProgrammingDEV Community ·

Developer Builds Local AI Tool That Writes and Verifies CTF Reverse-Engineering Challenges

A developer created SlothCTF, an open-source tool that uses a locally run open-weight model to generate reverse-engineering CTF challenges from a short text prompt. Early attempts failed because language models repeatedly miscalculated byte-level XOR encoding, so the design was changed to have the model write C programs while the compiler performs the exact arithmetic. Each generated challenge is compiled, executed, and checked to confirm the flag is recoverable, that correct input is accepted and wrong input rejected, and that the plaintext secret does not appear in the binary's strings. The developer reported that all 20 of their planned challenge prompts produced valid challenges, each including source code, a compiled binary, a player README, and an organizer walkthrough. The project was submitted to a Hacktoberfest open-source AI challenge.

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ProgrammingDEV Community ·

Modder's Endless Legend 2 automation tools expose solved city-layer mechanics

A modder has released Endless Legend 2 mods that automatically choose the best population growth, swap jobs, and buy foundations, aiming to reduce tedious micromanagement in wide and late-game play. Players praised the time savings, with one reporting hundreds of fewer clicks. The author argues this reflects that many city-layer decisions have a computable optimal answer, making them data entry rather than meaningful choices. Others counter that the dense adjacency puzzle is a deliberate depth that fans enjoy, though the mandatory nature of district management means solved tasks crowd out the decisions that remain open. The author concludes that the real issue is manual repetition of solved decisions, and suggests Amplitude should incorporate such automation into the game.

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ProgrammingDEV Community ·

n8n, Zapier and Make Compared on Cost, Control and When to Write Custom Code

The article compares Zapier, Make and n8n, three tools for connecting apps and automating routine work. Its central point is that they bill differently: Zapier charges per action, Make per module, and n8n per workflow run, so costs diverge as workflows grow. The guide reviews October 2026 pricing from Zapier's and n8n's public pages and explains Make's billing without publishing exact figures. It recommends Zapier for simple automations, Make for visual branching at lower step prices, and n8n for long, high-volume or self-hosted workflows. It also argues that teams needing custom interfaces, memory or changeable rules should consider writing custom code, possibly alongside n8n for background jobs.

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