Earlier this earlier, Apple launched iOS 15.2.1 and iPadOS 15.2.1 system, mainly to solve the vulnerability of iPhone and iPad, and the official is also called for users to upgrade.
According to Apple's official statement, this revised nature update includes important security repairs for a known HOMEKIT vulnerability last year, which solves a HOMEKIT name that may lead to malicious production, a denial of service vulnerability, which will cause iPhone and iPad cannot work.
Apple said that this is caused by a resource exhaustion problem, and now it has been solved by improved input verification.
Apple is restricted in iOS 15.1 with a name length of the HomeKit device or application setting, and partially fixes the vulnerability, but it does not fully fix this problem, because the malicious man who uses the vulnerability can use the Home invitation instead of the device again Trigger the attack.
Because this vulnerability may result in data loss in the worst case, it may cause the device to reset in the best case, so it is worth updating to IOS and IPADOS 15.2.1 updates.