As disclosed recently, Apple has fixed some serious security issues with the release of iOS 12.3 a couple of months ago. These security flaws could allow an attacker to brick iPhones via malicious iMessages. The only way out for the user to handle the situation would be to wipe the phone and lose all data.
Malicious iMessages Could Crash iPhones
According to a blog post by a Google Project Zero researcher Natalie Silvanovich, there existed serious security threat to iPhone users. Due to some security flaws, it became possible for a potential attacker to trigger system crashes by sending malicious iMessages.