Qin Feng left for more than a month and returned to his RV again.


    If the family is uninhabited for more than a month and the doors and windows are closed, it must be full of a musty smell.


    Why does the house smell musty when it is uninhabited for a long time? This is because bacteria bred in a long-term uninhabited, ventilated and humid environment will produce the smell of corruption. In a closed environment, the slowly released odors of furniture, leather goods and wood products cannot be dissipated and gradually accumulate into a certain concentration.


    These gases are naturally harmful to human body.


    This usually requires only ventilation.


    Of course, fungi in the air will exist for a long time.


    Actually, it''s very simple.


    Take out a little wormwood and put it in a bowl, then drop a bottle of 82 year balm on wormwood, light it, and finally place it in the room. When it burns out, the musty smell in the room will disappear when the smell dissipates. Fungi in the air are naturally killed.


    Qin Feng was also worried that there would be a heavy musty smell in the RV, so he also prepared wormwood and essential balm in advance.


    I never thought that after opening it, there was no musty smell in it.


    After calling to inquire, I learned that the RV has an automatic air cleaning function and will continue to keep the air in the RV fresh. Also, if the air is too humid, dehumidification will be turned on. In addition, when no one lives, it will automatically turn on the UV lamp for sterilization to ensure that everything in the car is in a clean state.


    Of course, these need electricity.


    However, the whole vehicle management system of RV has been self-set.


    If there is no external power supply, the RV will automatically reduce the air freshening time and dehumidification times. As for the UV lamp, it will also reduce the opening time. Moreover, when the energy is about to run out, all power consuming equipment will be turned off in order to ensure that the RV can start.


    If the external power supply is, it will automatically follow the normal procedure.


    On Qin Feng''s side, he received the charging pile and water pipe from Harvard to ensure the water and power supply of the RV.


    After all, no matter how big the battery is, you can''t really use it at will.


    Therefore, the whole RV maintains a very pleasant air environment.


    This makes Qin Feng very satisfied.


    Then, Qin Feng checked the security problem in the RV to see if anyone entered. After confirming that there was no problem, Qin Feng turned on the computer and logged in to the dark network.


    Qin Feng hasn''t logged in for more than a month.


    Although it is said that it is OK to log in in China.


    Moreover, Qin Feng believes that the safety factor should be very high.


    After all, the dark net in Huaxia is actually very vague and not very clear.


    However, for safety, Qin Feng still didn''t log in.


    Be sure to log in in in the most secure environment.


    This RV is the safest login environment Qin Feng has found so far.


    The whole RV can be bulletproof, including rockets, and can resist one shot. Moreover, if the enemy wants to release poison gas, the RV will call the police.


    In this way, whether it is a strong attack or a secret acquisition, Qin Feng has enough time to destroy the evidence, so that no one can get any data from his computer.


    After all, Qin Feng also studies it, and he is also the chairman of the white guest alliance.


    This is not a joke.


    Qin Feng knows very well how to delete hard disk data without being found back.


    Simply delete, then you can get it back immediately.


    If you overwrite it repeatedly, you may not be able to cover all the data.


    Therefore, under normal circumstances, if the FBI attacks, in the movie, the hacker can delete all the data in the computer with one button and can''t find it back. That''s really funny.


    Indeed, the FBI is afraid that hackers will delete all the evidence. Generally, it will not act rashly and will conduct raids so that it cannot be deleted.


    However, it is afraid that hackers will delete it in advance. If you give hackers time to prepare, the data will be deleted and will not be found.


    However, if you jump in directly, the hacker will be caught off guard. Even if he can delete part of the data, he can still intercept a large amount of data.


    After all, it takes time for the hard disk to overwrite the data.


    The larger the hard disk, the longer the coverage speed.


    Therefore, Qin Feng has specially developed a small program.


    Once someone forces the RV, Qin Feng will start this small program.


    This small program will quickly copy and post the data in the same sector of the hard disk at the fastest speed, and fill the whole hard disk. Because it is the same sector, copying and posting is very fast.


    After filling the hard disk, it will start to destroy the sector, and then clear the sector data. Then, recreate the sector, reconstruct the simplest data, quickly copy and post, and then delete it again.


    It will continue until it is forcibly terminated.


    In this case, Qin Feng has timed for 7 minutes. As long as he is given 7 minutes, he can modify the whole hard disk and can no longer retrieve any little data.


    Of course, seven minutes is too long.


    If it takes 5 minutes, 95% of the data can be covered and difficult to retrieve.


    In 3 minutes, 70% of the data can be covered.


    If there is only one minute, it can only cover 30% of the data.


    Of course, the reason why the small program designed by Qin Feng is powerful is that it can be preferentially covered according to the core data sector.


    In this way, even if it takes only one minute, 30% of the core data can be covered.


    Basically, if you want to find it back, especially find useful information for Qin Feng, it will be very difficult.


    After logging into the dark network, the changes have been much greater.


    The content of the external network of the dark network is more complicated.


    Naturally, since it is a dark network, it is all some illegal activities, which are published on the Internet.


    Qin Feng used his privilege to check. The transaction rate was very high.


    Basically, the turnover rate exceeded 70%. This is already very high.


    This will lead to the dark net being sought after by more illegal people in the future.


    As for illegal activities, Qin Feng simply swept it and didn''t go to see it.


    Because many of them are anti human, very abnormal and even cruel.


    Qin Feng worried that he would be psychopathic if he saw too much.


    This man is the most vulnerable.


    It is easier to learn bad than to learn well.


    In such a place, if you stay for a long time, you can''t point out that you are distorted in your heart.


    Once twisted, it''s destroyed.


    Therefore, Qin Feng directly entered the dark network.


    Here, compared with the Internet, it is simply a fairyland on earth.


    Basically no change. Most of the forums discuss various technologies.


    They are very harmonious with each other. It''s not like the Internet.


    For the arrival of Qin Feng, everyone also expressed respectful greetings.


    After all, the dark net is due to Qin Feng. Everyone respects Qin Feng, the founder.


    Because their life has changed for the better.


    Hackers no longer condescend to the cruel reality, which is a great kindness.