iPhone security patch: Apple released an emergency alert to iPhone users, asking them to update their phones as soon as possible to secure them against hacking. iOS 18.4.1 patches two critical security flaws that would enable hackers to take over your phone. The vulnerabilities are in the CoreAudio and Pointer Authentication modules, putting big privacy risks on the table. So you can do the updation as soon as possible without taking it as an easy task. Below is how to patch the vulnerabilities and safeguard your iPhone.