medhaa.hashnode.devHow websites instantly invalidate your old passwordWhen you change your password, you must have noticed that you are forced to log out of the site, and within the next second, the old password becomes invalid. How does it happen so fast? First - how p1d ago·5 min read
medhaa.hashnode.devWhat is Cloudflare "verify you're a human" check??While browsing websites, we often encounter an annoying checkbox: “Verify you are human” — provided by Cloudflare It feels strange. How can a simple click decide whether you’re a human?And why does th4d ago·4 min read
medhaa.hashnode.devHow LeetCode Saves Your Code Even When the Internet Goes OffToday, while working on the daily problem on LeetCode, I noticed something interesting. My internet connection went off midway while I was typing code. Normally, I would expect the editor to freeze or5d ago·3 min read
