iOS 12.5.5 has been released with security updates that address bugs dealing with PDFs, web content, and malicious app code execution.Apple released iOS 12.5.5 for older iPhonesThis is the first update to iOS 12 since June, when Apple patched an issue that enabled maliciously crafted web content to execute code. The iOS 12.5.5 update addresses similar issues pertaining to maliciously crafted PDFs, web content, and apps.Read more