A hacking expert said that after the death of a person, there is no way to unlock the fingerprints of the deceased to unlock the phone.
Over the years, we all know that the development speed of smart phones is getting faster and faster, and a variety of mobile phone unlocking methods are also overwhelming, the purpose of which is to be able to create a high cost performance of mobile phones and allow customers to buy.
One. What are the unlocking methods of the phone?
When we use the smartphone every day, we will observe that there are three main ways to unlock the phone.
1. Password unlock.
This method is the oldest, and it continues to this day. By setting a digital password to ensure the security of the mobile phone, although it is also a good way, but every time the mobile phone boots or opens the screen to enter the password, from the perspective of convenience, the sense of experience is relatively weak.
In terms of digital password unlocking, some mobile phones enter nine digits as the unlock password, while some mobile phones have a PIN code, and only need to enter four digits.
Of course, the more numbers you enter, the higher the safety factor. But convenience is much worse.
2. Pattern unlocking.
This unlocking method is also becoming more and more popular, users do not need to enter complicated numbers, just need to draw a graphic, on the whole, it is much simpler, and the safety factor is also very high.
3. Fingerprint unlock.
At present, among the three unlocking methods, fingerprint unlocking is the most used. This way is that you only need to enter the fingerprint of the individual once in the early stage, then you only need to press the identification point on the screen of the mobile phone with the finger entering the fingerprint in the later stage, and the mobile phone can be automatically unlocked.
And fingerprints are unique, so in terms of security, it is guaranteed.
The main reason why fingerprint unlock is used more by users is that it is both convenient and secure.
Two. Since fingerprints are unique, can fingerprints still be unlocked after a person dies?
Let's start with a real-world case.
In the early years, a friend died suddenly at home, and he chose to leave.
The family didn't understand and wanted to figure out what was going on.
After all, the friend did not leave any letters before leaving, and the only thing left was a mobile phone on his body.
So if you want to solve this problem, you have to unlock your phone.
Because the mobile phone is set to fingerprint unlocking, although the friend has left at that time, but the family used his finger to unlock, still not unlocked.
Later, after the service provider who specifically found the mobile phone, there was no way to unlock it because it was a fingerprint.
So after the death of a person, can the fingerprint be unlocked in the end?
In fact, if you want to figure out this matter, you must have a comprehensive understanding of the fingerprint unlocking of the mobile phone.
1. What is the principle of mobile phone fingerprint unlocking?
Our mobile phones generally have a small virtual fingerprint button, which is actually a capacitive fingerprint module, using the electric field formed by silicon wafers and conductive subcutaneous electrolyte, and the high and low fluctuations of the fingerprint will cause different changes in the pressure difference between the two, so as to achieve accurate fingerprint determination.
When we record the fingerprint step by step through the prompt set by the mobile phone in advance, then our later fingerprint is actually consistent with this capacitive fingerprint module, so that the purpose of recognition is achieved, so that the mobile phone can be unlocked.
2. What kind of process is mobile phone fingerprint unlocking?
If you want to unlock your phone with your fingerprint, you have to complete four steps.
Step 1: Fingerprint collection. Fingerprint entry is the first step, we need to cover the full range of the capacitive screen with our fingers a little bit, the purpose of this is so that the mobile phone can completely record our fingerprints, after all, the fingerprint fragment is no way to identify.
Step 2: Fingerprint evaluation. For the entered fingerprints, the mobile phone system will evaluate, if it does not meet the requirements, it will ask to continue to enter until the requirements are met.
Step 3: Extract the features. This step is very critical, the system will collect and convert information according to the fingerprints entered by each person, including some of the strength fork points of fingerprints, etc., which must be processed systematically and then saved to the database.
Step 4: Fingerprint recognition. When the recorded fingerprint and the fingerprint of the capacitive screen match and are consistent, then it can be unlocked.
3. After a person dies, can the fingerprint be unlocked?
For fingerprints to be recognized, they need to be carried out by "living organisms".
People are alive, and before the bioelectric signals of the human body disappear, they can be unlocked by fingerprints.
But if the person dies for a long time, then the microcurrent in the body will disappear with it, and when the human body has no bioelectricity, even if there is a fingerprint, it cannot be unlocked.
In other words, if the person has just died, the body still has a temperature, then it can be unlocked using fingerprints,
Once the body becomes cold, there is naturally no way to unlock it.
Three. If after the person dies, the fingerprint cannot be unlocked, then what should be done?
If you really encounter such a situation, but the phone must be unlocked, then you can only turn to the public security system.
Because the public security system will often have the need to solve cases, especially when many of the tools for committing crimes are mobile phones, there will be special technical personnel who may be able to unlock the mobile phone, because they will cooperate with mobile phone manufacturers and service providers, and may be able to unlock the mobile phone.
If the mobile phone does not have too much information to unlock, just want to simply use the mobile phone for the second time, then you can also ask some technical personnel to brush the machine, which is equivalent to reinstalling the mobile phone system, and can also open the mobile phone.
But this will cause all the data information to be lost, and the phone will be like a factory reset.
Therefore, you must comprehensively evaluate whether you should do this.
Four. Will people's fingerprints change?
Perhaps many people will have such a question, in case they recorded their fingerprints to unlock, which day their fingerprints changed, then the phone will not be able to unlock?
In fact, there is no need to worry about this, because everyone's fingerprint is unique in the world and unchanged for life, which is why many contracts or cases use fingerprints as a sign of human identity.
Of course, if some external factors are too affected, then people's fingerprints may also have slight changes. For example, like some swimmers, they are immersed in water for a long time, which will cause the skin of their hands to fall off, and the fingerprints will fade, so that they may not be able to identify them.
Five. Write at the end
All in all, the security of fingerprint unlocking is still very high, we usually set the mobile phone password, try to set two unlocking methods, so as to prepare for emergency. So as not to forget the unlocking method, resulting in the phone can not be unlocked, bring yourself a lot of trouble, and even spend money to solve, it is better to prepare an unlocking method from the beginning.
Thank you for reading.