"That email may be dangerous to open !?" In recent years, it has become less of a big topic, but malicious programs such as viruses are still targeting our PCs. Therefore, I would like to introduce the basics of the virus that I would like to confirm again, its danger, and what countermeasures are available.
Why You Need Antivirus on Your Computer
I think that there are many people who say that smartphones have become widespread these days and the opportunities to use personal computers have decreased. However, I would like to pay attention to the anti-virus software for personal computers.
Especially in the case of Windows, if you neglect to take antivirus software, the risk of your computer becoming infected with a virus increases. Also, even if you intend to install virus software, be careful if the virus software is old and has expired.
From the following items, we will introduce antivirus software for personal computers from the basics.
What Happens if I Don't Take Antivirus Software on My Computer?
If you neglect to take software such as "I will not be infected with a virus anyway", the possibility that your computer will be infected with a virus from suspicious spam emails, websites, applications, etc. will increase.
What are the symptoms if I get infected with a virus?
Examples of viral symptoms
When your computer is infected with a virus, the following symptoms may appear.
And personal computers of the program is rewritten, it is will not start
continued movement and high load of the program, the personal computer is physically failing would
the file is deleted, be destroyed
without permission e-mail a large amount sent from the - your account be
and personal information is flowing out
voyeur from PCs built-in camera and microphone is eavesdropping
In this way, when infected with a virus, not only can the computer be damaged, but in the worst case, a large number of spam emails are sent, personal information and contacts contained in the computer, and stored files are leaked. There is an increased risk of inconvenience not only to yourself but also to those around you.
What Kind of Virus is There?
Programs that do bad things to your computer are generally collectively called "viruses", but the exact generic name is "malware". This "malware" includes "viruses" and several other types of programs.
Virus
A malicious program that copies its own program and spreads from computer to computer is called a "(computer) virus" in the natural world because of its function. Some programs are mischievous and do not cause much harm, while others are malicious programs that destroy hardware such as personal computers and programs.
Most viruses are sent in a "file" format, so the best bet is not to open suspicious files.
Worm
Worms are a type of virus, but they copy themselves and spread or move from the contact list on your computer without requiring any user intervention.
Therefore, worms have higher spreading power than other viruses, and also put a heavy load on PCs and servers.
Trojan
Trojan horses are not strictly viruses, but malicious programs that pretend to be image files or applications. It disguises itself as a normal application and accesses the internal information of the personal computer to take over the personal computer, leak personal information, destroy the program, and so on. It is also a countermeasure not to use suspicious data or apps found on the net.
What Kind of Virus is There?
So far, we have explained the dangers of viruses and the types of viruses. So what can you do to prevent virus infection? Here are some points to note.
Update OS/Software
The first important thing to recognize when taking antivirus software is that there is no perfect antivirus software.
Therefore, antivirus software is always "cat and mouse with the latest virus".
Therefore, it is important to keep the OS and software up to date. In many cases, OS and software updates include improvements to "program (or security) vulnerabilities" such as bugs, bugs, and design mistakes that can introduce risks such as viruses.
Most importantly, keep your OS and software up to date.
Do not leave expired security software on your computer
If you install security software that includes antivirus, it is not always safe. Security software that monitors files and programs on your computer may stop either operation so as not to conflict with other security software and cause problems.
For example, the security software "Windows Security" that comes standard with Windows does not normally work when using other security software.
Therefore, if you leave the expired security software unattended, it will be in a state where effective antivirus software is not taken and it is very dangerous. Update your security software to the latest version, or uninstall (remove) it to enable "Windows Security".
Do not read suspicious emails
Many viruses are spread by spam emails. "I don't recognize the sender's address" "Somehow the text is unnatural" ... When such a suspicious email arrives, it is natural not to open it and open the attached file, but it is recommended not to browse it. ..
Do not browse suspicious sites
Like spam emails, malicious programs are often distributed through suspicious sites such as illegal download sites. Be careful not to browse such sites.
Check the URL
Beware of phishing sites that spoof famous sites as well as suspicious sites. Even if the design looks exactly like the real thing, there are many clever tricks such as one character difference when looking at the URL. If you feel even a little suspicious, make it a habit to check the URL word for word.
Introduce security software
If you want to take stronger anti-virus software, we recommend installing "security software" that monitors whether malicious programs such as viruses have been mixed into your computer, and if found, reports or removes them.
・ Software type
In recent years, free security programs have been included in the OS, such as "Windows Security", but if you want to take stronger measures, why not consider introducing paid software?
・ How to choose software
When buying antivirus software, consider all of the devices you want to keep protected and the family members who use these devices. Think about your budget, too, and select software that is right for your needs at a cost that represents a worthwhile investment into the protection of your digital life. Solutions exist at various price points for quality antivirus software
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