Liao Hua was very respectful to Li Yun, and did not despise Li Yun because of his young age.

"Ding, trigger the option event, please choose from the host:

Option 1: Introduce relevant knowledge to Liao Hua, reward justice value +500, purple gift bag*1.

Option 2: Reject, reward.

Option 3: Introduce hacker protection knowledge, and take the opportunity to promote Xuanyuan Shield, reward justice value +2000, golden gift bag*1, business acumen is significantly improved. "

Li Yun almost didn't jump up, the system actually generously rewarded the golden gift bag? !

And also added two thousand justice points, which is simply amazing!

"Uh, Li Yun?"

"Ahem!" Li Yun cleared his throat and introduced: "The safest and most effective method is not to connect to the Internet!"

Without the Internet, hackers can't invade even if they are a great skill!

Liao Hua shrugged and said that it was impossible.

For example, how do satellites in the sky work without networking?

Furthermore, even a local area network may be invaded by the outside world.

"If you want to connect to the Internet, I suggest defending from the following aspects, first of all hardware-level protection..."

Li Yun just spent more than ten minutes briefly introducing the protection methods. Although Liao Hua didn't understand many places, he still listened carefully and kept everything in his heart.

But Wu Ke was more surprised as she listened.

Although Li Yun mentioned few things, he was far-sighted and put forward a method of systematically defending hackers from the overall situation.

If the things he mentioned are expanded and sold as a book, it is definitely better than any hacker prevention book on the market!

"But, there is a more convenient way!"

"Oh?"

Liao Hua was very interested and quickly asked what the method was.

"That's based on the program architecture I wrote, specifically to make a full-featured and extremely powerful firewall!"

Li Yun brazenly regarded the Xuanyuan Shield awarded by the system as his own, and introduced the two of them to related matters.

Liao Hua was overjoyed when he heard that Xuanyuan's Shield could defend against almost all viruses in the world.

Liao Hua would definitely not believe these words, but if it was Li Yun, he would definitely believe it!

After all, a hacker patted his chest to ensure that this Xuanyuan Shield is absolutely strong!

"How about this."

Liao Hua pondered for a moment, "Since Li Yun, you want to make Xuanyuan Shield, let me take the lead and let the commercial bank of Zhonghai City invest in you, and then set up a company called Xuanyuan Shield, and Baiyun Technology will be responsible for it. Manage and provide technology. We are responsible for paying money and various policies. What do you think?"

State-owned commercial banks are originally engaged in investment, and investment in private enterprises is also very common.

Li Yun's goal is exactly the same.

With the support of the bank, are you afraid of not making money?

"Ding, the host has made a choice, and the reward (justice value +1000, golden gift bag*1, business acumen is significantly improved) has been issued!"

After finalizing a simple preliminary contract, Li Yun was rewarded by the system.

Moreover, this is the first golden gift bag that Li Yun has obtained, which makes him extremely expecting to be able to open something defying the sky!

After seeing Concubine Wan Qing's volley control of hairpins, Li Yun became very eager for this kind of immortal cultivation.

Although there is a high probability that you will not be able to move the mountains and the seas as in the fairy-xia novels, it still makes people yearn.

After finalizing the contract with Liao Hua, Wu Ke will do the rest.

This made Li Yun extremely grateful, but fortunately Wu Ke was there, otherwise these things would be really difficult to handle.