Working in technology, I’d wager at least half of the people I encounter have red alert badges on multiple home screen icons. The reasons why they ignore them aren’t important. What’s important is that you need to take action.
Apple just released iOS 9.3.5 to fix a zero-day security vunerability that could potentially give access to your iPhone to hackers using a simple link in a text message, email, or web site.
So, stop staring at the little red badges and update your damn iPhone.