During the holiday season, the use of smartphones increases, and hackers targeting them also actively distribute malicious codes, requiring attention.
AhnLab warned that hackers are actively distributing malicious codes as smartphone usage increases significantly during holidays, such as train tickets, airline tickets, accommodation reservations, travel destination information search, and gift exchange.
At the same time, he asked to refrain from reading informational text messages such as train tickets and airline tickets, courier information, and greetings from unknown sources, viewing mail attachments, and executing URLs.
In addition, there is a risk of hacking when using free Wi-Fi installed at highway rest areas and sleepy shelters, so caution is required.
According to AhnLab, free Wi-Fi carries the risk that even if a hacker takes control of just one router, all PCs and mobile devices connected to the router can be hacked.
In fact, according to AhnLab, there are frequent cases of Internet address (DNS) modification and personal information leakage due to malware infection of free Wi-Fi.
If the DNS is tampered with, even if the user enters a normal address, the hacker will link to a site that is very similar to the real site, causing harm to the user.
Accordingly, when using free Wi-Fi, it is necessary to frequently change the ID and password of Internet services such as portal sites and back up important information.
In addition, Android phone users should set the 'Unknown sources' installation item to 'Do not allow' to prevent unknown apps from being installed when clicking a URL link.
In order to prevent financial damage from smishing crimes, you should reduce the micropayment limit through the telecommunications company's customer center in advance and carefully check all received text messages.
(Photo = Global Times capture, Yonhap News)