Yin Xiyue refuses to provide the password for his phone; the coup investigation may be deadlocked.

"I will not provide the password." According to the Korea Times, the former South Korean President, Yoon Suk-yeol, who has been impeached, refused to provide the unlock password for his Apple phone to investigators, causing technical difficulties in the investigation of the "coup plot case." The South Korean prosecutors confiscated Yoon Suk-yeol's iPhone in early July, attempting to obtain evidence related to the "military control incident in early December last year." However, the phone has dual encryption protection: in addition to a six-digit password, it also has facial recognition. Technical experts point out that with a combination of uppercase and lowercase letters, numbers, and symbols, there are up to 560 billion possible combinations for a six-digit password. What's more challenging is that if the wrong password is entered 10 times consecutively, the phone may trigger a mechanism to automatically delete data. While law enforcement agencies can use cracking devices to attempt to unlock the phone, such as in 2023 when the police successfully obtained an official's iPhone data using software from the Israeli company Cellebrite, the success rate and time required are uncertain.