According to ChainCatcher, the antivirus software Kaspersky officially stated, "A very serious vulnerability has been found in Apple's operating system again. Attackers can obtain root privileges and may endanger the security of user assets. These very serious security vulnerabilities in iOS and macOS have been exploited by attackers. In order to deal with these vulnerabilities, Apple quickly released updates for several previous versions. These vulnerabilities are very critical, please update quickly."