The bank's offices are quite complete. Not only is there a temporary bedroom for the night shift, but there is also a bathroom.

After dinner, Meng Fei took a shower and returned to the office.

He hadn't expected to spend the night in the office, so he didn't bring a change of clothes and put the clothes back on as they were.

It's winter, and you might be able to afford not changing your clothes for a day or two.

The huge office was empty, black rumbling, and only a few power lights everywhere seemed a little scary.

He pressed the light switch at the entrance. With a loud bang, the office shaped like a huge strip of light lit up one by one.

There is no day or night in the office. It feels much better when the lights are on.

It's just that there is no one in the entire office of more than 300 workstations except him, and the atmosphere is a little weird.

But Meng Fei is not worried about security here.

It's a bank. While this isn't a vault full of banknotes and gold bricks, it's the entrance to a lot of banks' confidential data, and it's just as heavily guarded.

Armed security guards are stationed at the entrances to each floor of the building, and no one is allowed to pass through at night.

A vital monitoring system has also been installed in the office area, which will alert any live warm-blooded animal mixed in with the office.

Not only can they catch people, but they will also use this to catch mice.

He had already been registered with security for the night, so he was excluded. So he's the only one who can stay in the office tonight.

It's much safer than his farmhouse on the side of Joyama.

He looked at each person's workstation one by one.

After all, a workstation is a place that consumes one-third of your life every day, and everyone's style is different.

Some people's workstations are piled with professional books, while others are full of unpacked clutter. Some of the artificial positions are clean, and some have succulents, puppets, and handicraftsmen or photos.

Only computers are inevitable for everyone.

All computers are on. These work computers don't turn off in the first place. The security system automates some of the scanning, backup, and upgrade work in the middle of the night when no one is around.

These computer logins require a username and password. Meng Fei has the administrator password he got from the bank, and he can log in to any computer at will.

But he doesn't.

"Scan!"

The target of his scan is the source of all executable code, analyzing the possible behavior of the code, and all traces left by those actions.

When it comes to this problem, even if there is the strongest bug system, it will take a little brain. Because it's not about scanning for bugs.

He's going to scan all the code on the machine for what it actually does, and what it's actually done.

For example, if some code has the ability to modify the security system, and the security system actually leaves traces of modification, then the problem has been found.

On the other hand, if nothing is assumed, then it is in vain.

It's harder than finding bugs or simply comparing mutations in DNA. There's too much logic to cover.

Fortunately, the strongest bug system was simply the most powerful supercomputer he had ever seen, and countless instructions flowed through his brain like a river under the impetus of surging computing power.

It stands to reason that the most suspicious is Xiao Han's computer. But he didn't start with that computer. Because he had secretly scanned the computer in the afternoon.

It's all clean. Xiao Han, a good boy, really doesn't do any personal things when he goes to work, and he hasn't even opened a news website.

But it's a different story for others.

Although the software in the computer here is installed and blocked by various restrictions, the office workers still have their own magic and find a way.

Some people secretly read novels at work, some people play my page game when they are brothers, and there are even those who open Xiaohuang Station.

Because mobile phones are forbidden here, they all did their best. Thankfully, these small actions don't seem to have led to data leaks.

Liu Gang: The security system they developed is very strong. Even if you connect to a less reliable website, the chances of being planted as a Trojan horse are slim.

After scanning dozens of computers, Meng Fei felt a little dizzy, sat on an office chair and closed his eyes to rest for a while, when he suddenly heard a slight sound.

"Click, click, click......"

He snapped open his eyes.

The sound was gone.

It was a sound he knew all too well, the sound of a mouse click. WOC, there is obviously no one here except him, why would anyone click the mouse?

Is there a ghost?

In fact, he was more likely to have misheard. Analyzing these computers is quite systematic. Isn't it a backlash again? Regurgitation to the point that I have auditory hallucinations?

He closed his eyes again, intending to get some rest.

"Click, click, click......"

Not again!

This time he didn't open his eyes. Since you can fight hard without opening my eyes, let me listen carefully, where is the sound coming from?

It's just that this office space is too big. Even though you can hear it at night when you drop a pin, it's hard to really tell where the sound is coming from.

When he determines that the sound is coming from a certain direction, he always has a vague feeling that another completely opposite direction also makes perfect sense.

Regardless of it, it can be excluded one by one.

Meng Fei suddenly opened his eyes and got up, running in a certain direction.

I'd like to see, how can no one click on it themselves?

Of course, he wasn't looking at a mouse or a keyboard. It's hard to tell if the thing has moved or tapped.

He watched to see if the screen was lit up.

Because these machines automatically turn off their displays soon after entering power-saving mode, the screens are all black.

If someone moves the mouse or taps on the keyboard, the screen will light up immediately.

It's a pity that after he ran over, all he saw was a row of quiet, unmanned computers with black screens.

Meng Fei really suspected that he was going to die.

He thought rationally that with the astonishing speed at which he went to work to secretly read a novel and decisively shut down before his boss showed up, it would have been too late to quickly turn off the monitor before he could run.

But who is doing it? If someone other than him was in the office, the office would have called the police a long time ago.

No one even opened the office door. If the door opens without a single sound, it is impossible.

Abilities?

If you have an ability, such as invisibility...... It is entirely possible to create such an effect, whether it is to travel through space silently, or simply to create illusions, etc.

But a supernatural person, why did he come and click the mouse to tap the keyboard? Scare Lao Tzu? There is a kind of coming out to do it! Just hang me and torture me for the file key.

Meng Fei sat on the chair, pushing himself with his feet, and slid quickly on the ground with the help of the wheels on the chair.

Soon to the window.

The so-called windows of office buildings are walls. The entire building's façade is entirely glass. In front of him was the heart of the sleeping city. The rows of buildings resemble server cabinets with flashing traffic lights.

The glass windows are crossed by thick metal beams, like window sills. Meng Fei lay on the "windowsill" and pretended to be asleep.

His eyes narrowed, looking at the glass window.

He didn't look out the window, but inside the office, which was reflected in the glass window.

Because the inside of the office is much brighter than the outside, the glass window now looks like an inky mirror.

Here he could see a whole row of computers. The third group is the row where he and Xiao Han are sitting.

He was pretty sure that the mouse and keyboard sounds he had just heard were coming from this row.

He can't necessarily see the subtle movements of the mouse and keyboard in the reflections. But a whole row of black screens, which one is lit up, he can still see it!