Expert opinion: Analysis of data security and cloud storage

The so-called Safe, that is, the meaning of data is not lost. This is a problem solved by cloud storage. You can put your data in the cloud. All your terminal devices can share your data through the cloud. In this way, the cloud becomes your data hub for data synchronization and backup. . Speaking professionally, this is called Availability. Chinese is called usability. It means that your data is always available and will not be lost.

The so-called Security, which is the privacy of the data and does not leak. For now, the cloud storage that I see is solving Availability, not Security. Security solves privacy and non-disclosure problems.

"A type of data can't be lost, but it can be leaked. It can be put in the cloud. Another kind of data can't be leaked. It can't be placed in the cloud." This sentence can help you better understand what is Availability and Security.

Security - Local vs Cloud

The cloud is now more resolved without losing, not leaking. In fact, cloud storage can also guarantee Security. Because there is encrypted authentication, the cloud encrypts data. There are different opinions on this. For Security, Security's data should be completely privatized, so there will be better Security on the local. The reason is as follows:

Ask yourself a question first. Whether it is cloud service of a large company or not, do you dare to put your bank account number and password in the cloud? Your bank account number and password may not be on your computer. Because you're going to find a place that absolutely absolutely only you can visit. For example, your brain.

Cloud authentication and cloud data encryption useful? No use, because I just cracked the user password, think about your computer became a broiler, your network disk password is not, your cloud data has become a cloud. Think about the password leakage of major websites at the end of last year.

When the data is stored on the local mobile hard disk, only when your computer is plugged into the USB cable at the same time, other people have the opportunity to invade. Once you discover the invasion, you can also pull the line. And your data is in the cloud, hackers can invade your cloud data 24 hours a day, and after you succeed, you do not know your account is hacked.

Whether it is in the cloud or in the local area, your client will not be broiled, and the cloud will face more risks than the local, such as unscrupulous cloud employees, cloud code holes, cloud hacking, and email. Phone fraud, phishing websites, DNS hijacking, government censorship, and more.

Take a look at the banking and finance industry, which is entirely its own private network and is physically isolated from the Internet. This is for Security. Security must be absolutely absolute privatization of data. For example, some companies' computers cannot use peripherals such as USB, optical drives, etc. All data exchange between the internal network and external network must be monitored.

Say a little more, in fact, to cloud your cloud account does not use highly sophisticated technology, a survey shows that disguised as customer service staff or the police call you to ask you to ask for a password, most people will tell their own account And passwords. There is also the psychology of seizing people's advantage, such as: U disk in the street, most people will go back and insert themselves or the company's computer to browse the contents.

Therefore, the so-called physical isolation is not just a network cable, there are these peripherals.