What about KDDI and Rakuten, a service to prevent "fraud SMS"?――When you can take your own measures

What measures can I take as an individual?

Although various measures are taken on the carrier side, personal preparation is also essential.

Many SMS scams use the names of carriers and major shipping companies. A typical example is an attempt to defraud IDs and passwords by directing users to the listed URL, claiming that the billing charges are high, etc., using the name of the carrier. no. On the other hand, many of those pretending to be major delivery companies disguise the absence of packages, and they often have their IDs and passwords stolen as well.

Phishing SMS often has strange Japanese grammar and expressions. Even if the listed URL looks legitimate at first glance, it may be disguised, so be careful not to access it easily.

Fake sites are often made by copying the real site, and it is difficult to judge whether it is genuine by appearance. If you are concerned about the contents of the message, do not access from that URL, but bookmark the official site in advance and access and check it.

Furthermore, in the case of Android smartphones, there is a risk that fake apps will be installed on the fake sites you visit.

Once these apps are installed, not only can the information inside your mobile phone be stolen, but they can also be used as a stepping stone to send you spam SMS that you might have received yourself. It is important to note that even if you are a victim, you may end up inflicting harm on someone you don't even know.

These risks can be reduced by restricting the installation of apps from unknown sources from the settings.