When the system was released, some programs were found to have loopholes, which could be used by hackers to attack users. Therefore, corresponding measures are issued to deal with these hackers, and some applications are used to fix these vulnerabilities. These applications are called "patches", that is, system patches.
Second, the role
System patching is the most direct and effective way to solve the vulnerability problem, but patching is a passive way. For enterprises, the patching process related to collection, testing, backup and distribution is still a rather complicated process, and even the patch itself may become a new loophole.
Extended data
Broadly speaking, patching all defective or vulnerable software can be called "patching". However, because the general application software is very small compared with the operating system, and the installation of this software is not as complicated as the installation of the operating system, many application software solve their own defects or loopholes by upgrading the original version. Slowly, people regard "patching" as a patent to fix operating system defects or loopholes.
System patch is actually a program that programmers make to fix the loopholes after discovering that someone has used the loopholes in the system to destroy malignant viruses. Just like a repairman, some parts of the ship are not connected properly and the water is flooded. We use anti-virus software and firewall, just like scooping water with a spoon. We install a patch on the system, just like directly filling the hole with a wooden block or a welding torch, so that water can no longer enter.
Baidu Encyclopedia-System Patch