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![freeCodeCamp Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1668100142.png) freeCodeCamp.org [@freeCodeCamp](/creator/twitter/freeCodeCamp) on x 926.7K followers
Created: 2025-07-20 20:01:32 UTC

When you're writing code, sometimes you may not even know it's broken or vulnerable until something bad happens.

So Manish wrote this guide to help you identify common issues that'll make your code less safe.

He talks about missing input validation, poor error handling, no rate limiting, missing HTTPS, and more - with fixes.



![](https://pbs.twimg.com/media/GwU4GKJXIAI2ueB.jpg)

XXXXXX engagements

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[Post Link](https://x.com/freeCodeCamp/status/1947024095515742655)