It is not recommended to postpone installing the latest update for iPhone or iPad.
On March 26, just three weeks after the previous update, Apple released a new software update on iOS 14.4.1 and iPadOS 14.4.1. Apple recommends installing the update immediately, as it fixes security holes on iPhones and iPads.
According to tech site The Verge, the security flaw allows universal scripting across sites. In other words, a malicious website or script can access information from other websites you have accessed, which is appalling, in particular since Apple says some websites have already been doing this.
Delaying iOS updates is usually not an issue for a few weeks, but according to the websites macrumors.com and theverge.com, it would be best to download the latest iOS update (iOS 14.4.2) as soon as possible.
It will fix the security flaws, which Apple says may have been exploited by websites and people with bad intentions. Set aside a few minutes to download and update your iPhone and iPad, by going to “Settings”, “General” and “Update”, where you click “Download and install”.
Even if you do not get the iPhone or iPad updated right away, that does not mean that it cannot be used. However, make sure you stay away from dubious and suspicious sites, which you should take as a general piece of advice anyway.