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#What is Free Wi-Fi?

　Free Wi-Fi that can be used at stations, convenience stores, cafes, etc. Does not everyone have used it once? Recently, for the Tokyo Olympic Games in 2020, The number of places free Wi-Fi available mainly for foreigners visiting Japan is increasing.

As shown above, More than half of those who use free Wi-Fi (school survey, 108 people) are becoming familiar.
Let's learn about free Wi-Fi and security which is getting widespread from now.


#Connection safety


　Do you know that there is Vulnerability (weakness) on free Wi-Fi? Free wi-fi has no password required for connection because anyone can log in. In other words, Encryption does not protect the contents of communication. When you are using free wifi, are you not logging in to sites containing important data or entering important personal information such as card information?

　In order to prevent them, it is recommended that you do not enter personal information as much as possible, use VPN (Virtual Private Network) where communication contents are encrypted. VPN connection application for free wi-fi can be downloaded on GooglePlay store or AppStore. Also, some free wi-fi automatic connection applications have VPN functions. (Ex; town wi-fi etc.)


#Fake free Wi-Fi

　Also, fake items are appearing in free wi-fi. They set up a misleading SSID (name of Wi-Fi) like real, a hacker (here a criminal with a malicious purpose) waits for the user to make a mistake by connecting, and the user connects If you enter a password or personal information into a fraud, it is known to a third party who has a malicious purpose such as a hacker (here a criminal with a malicious purpose).

The input screen of the login screen etc. at that time is not genuine (as if it is genuine), it is set by a hacker (here a criminal with a malicious purpose) and connected to that harmful wi-fi Even if you enter the correct URL, you are guided to a fake website.
　Also, we will skip to the lie site that the terminal is in a dangerous state, and will try to download a virus application called security software. In this way, fake harmful free wi-fi is dangerous.

　However, if you use the free wi-fi connection application, you will not be connected to that harmful wi-fi. It is because it searches automatically by searching for registered correct free wi-fi. We recommend using these applications.

Next let's look at security of software.
Security of Software