If you are an iPhone user, please remember just in case.
If you encounter a suspicious WiFi SSID called "%P%s%s%s%s%s%n", never connect.Once connected, the WiFi function will be broken at the end.
This bug was found on Twitter with a security researcher Carl School and connected to "%P%S%S%S%S%S%N" and the iPhone was bugged.You can't turn on your iPhone wifi forever ...According to the 9TO5MAC, the bug also affects the iPad and cannot use services such as AirDrop.Even if you restart your device or change the hotspot SSID, you will not be able to connect to the WiFi network.
SCHOU did not find out how he found this bug, but other brave Twitter users connected to the Wifi network, and the bug was confirmed.According to Macrumors, the Android device does not cause a bug even if it is connected to this name network.
However, it was found that this bug was not permanently destroyed by Apple's hardware, but could be corrected.In the unlikely event that this bug is done, you can fix it with the simple steps below.
According to 9to5mac, you can reset all network settings, and you can modify it with "Settings" → "General" → "Reset" → "Reset Network Settings".This resets all the wifi networks stored on the iPhone, deleting the cursed network name from the device memory, and the iPhone can be connected to the wifi again.
Regarding the cause of this bug, due to the input analysis problem, the character after the percent symbol (%) is mistaken for a format designated child in a variable name or command that is used in coding languages.The theory seems to be common.There is also a theory that the memory is finally destroyed, and the WATCHDOG of iOS eliminates the process to stop the WiFi function.
There is no WiFi network named "%P%s%s%s%s%s%n" everywhere.I think Apple will fix this bug in iOS update, but be alert to the WiFi network containing the percent symbol.