You Need To Be Careful When Using Public Wifi, Why?
In this digitalization era, life cannot be separated from the internet, especially in big cities. This is not only the case in Indonesia but in every country as well, whether the internet is used to play social media, games or even do business. With the increasing need for internet networks, not a few parties also provide Wifi for the public. For some people this public wifi is a facility that helps them but it's good that you are also vigilant, because not always this public wifi is safe. There are several threats that you might get from public wifi, so what are these threats?
Public wifi is not all safe, because there are some that can expose their users to potential security risks. This is because there is a possibility that when a user is enjoying public wifi there could be a hacker who activates a fake hotspot which later this hotspot will create an access point that intercepts the Wifi data stream. So that with this hotspot hackers can observe user activity.
This hotspot also opens up various risks of attacks to its users, here are the kinds of attacks that threaten public wifi users:
Man In The Middle
Man in the Middle (MitM) is a type of attack that works by infiltrating the middle of the "conversation" between the victim and the intended server. So, often the victim does not realize when the attack is happening to him. Man in the Middle is a serious attack that threatens users of financial applications and other websites with login credentials, which can lead to huge losses.
Evil Twin
Evil Twin is similar to Man in the Middle, this attack is a network commonly used by users created by hackers. The goal is that users accidentally connect to the network so that hackers can freely provide phishing or even make users provide their personal information data.
Unencrypted Network
Even though users connect to official websites via HTTPS using a valid network, hackers can still read and monitor the browsing history performed by users. This is because the domain name system (DNS) used is not properly encrypted, usually this case is common in public Wifi. Even though hackers cannot see the specific page and the information entered, hackers can still find out what sites users have visited.
With the many risks lurking, that doesn't mean you have to completely avoid using public wifi. Because there are still ways to overcome these risks by using VPNs, software updates, and 2-way authentication to using smartphones as hotspots.
Reference:
https://www.detik.com/jabar/berita/d-6300066/jangan-sembarangan-pakai-wifi-publik-ini-bahayanya
https://www.dewaweb.com/blog/pengertian-man-in-the-middle-attack/
https://www.telkomsel.com/about-us/blogs/waspada-risiko-menggunakan-wifi-publik
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