15 Real Bugs That Wrecked Apps — Every Tester Must Know These!
15 Real-World Software Bugs Every Tester Should Know (With Detailed Explanations) These real incidents from tech giants and startups alike prove one thing: bugs don’t discriminate. Each example teaches a valuable lesson in what to test, how to test, and why QA is essential to product success. 1. Slack Password Reset Token Expiry Reference: HackerOne What happened: Slack’s password reset tokens were expiring immediately due to a mismatch between time formats. The frontend used seconds while the backend expected milliseconds, causing tokens to invalidate instantly. Lesson: Always ensure consistency in time units and formats between front-end and back-end systems. 2. Chat Widget Blocking Checkout Button Reference: Baymard Institute What happened: A floating chat widget blocked the checkout button on mobile devices, leading to massive cart abandonment. Lesson: Always test layout and overla...