If you happen to be called and hung up immediately then you have fallen victim to Wangiri, or at least they tried to deceive you with the method of one ring.
And suddenly a stranger called your phone. And it is from a country you have never visited. And each time the calling digits change slightly, making it impossible to block them. They ring your phone once and then hang up. You are tempted to call them back, but you should not, because this is all a Wangiri phone scam and it will cost you dearly.
The Wangiri scam is based on your innate curiosity. Many people would instinctively call back, a missed call, even from a mysterious international number. And the recurring nature of fraud (it is not uncommon to receive dozens of missed calls in a day) adds to the intrigue and stress.
Τι θα συμβεί αν θα υποκύψετε στο scam και τους καλέσετε πίσω; Η κλήση σας καταλήγει σε έναν ακριβό αριθμό με χρέωση. Στη συνέχεια, θα φροντίσουν να σας εξαναγκάσουν να παραμείνετε στη γραμμή, για όσο το δυνατόν περισσότερο. Όσο περισσότερο κρατάτε τη γραμμή, τόσο περισσότερα χρήματα θα κερδίσουν και τόσα περισσότερα θα χάσετε.
To achieve this, fraudsters rely on a combination of sociology and psychology. Some victims said they were told they had won a prize, usually money, and were encouraged to wait in line to claim it. Others simply test the victim's patience by listening to waiting music without doing anything else.
The Wangiri scam comes from Japan. The term itself is Japanese and means "one (stroke) and cut". And as the name implies, it is a truly international scam, with victims being spread all over the world. Fraud warnings have occasionally been made to the media in the United Kingdom, Canada, Ireland and New Zealand, and other countries. In the USA, the FCC has warned consumers for this.
The usual tactic of Wangiri fraud is to call from a different country than the one called. Calls have been reported from developing African countries such as Mauritania, Liberia, the Comoros and Chad, as well as from tiny Pacific nations such as the Cook Islands and Nauru (population 10.756).
But do not think that the Wangiri scam does not exist even in the most advanced countries. In December 2019, thousands of UK residents were bombarded with fraudulent phone calls from Swiss phone numbers.
How to Protect Yourself
Ultimately, there is only one way to protect yourself from this scam, and that is to avoid returning calls from unrecognized numbers, especially international numbers. It is not unreasonable to assume that anyone who wants to talk to you urgently will have your number saved in their contact list to call you back, or leave a voicemail or send an SMS.
You can also do something else. If you have been inundated with mysterious missed calls, you can Google these numbers to see if other people have suffered Wangiri from the same numbers, allowing you to confirm your suspicions that it is a scam.
If you end up with a huge number of blocked phone numbers with Wangiri calls, then consider changing your phone number and limiting who is calling you. Phone scammers often receive phone numbers from data leaks and marketing databases, which can be easily obtained through legal and illegal routes.
Another sensible idea is to contact your telephone company and ask them to put a limit on the amount of money you can spend each month. If you accidentally enter one of these Wangiri numbers, you will limit your losses to a more convenient amount.
If you have already fallen victim
What can you do if the worst happens and you return a Wangiri call? In this case, call your phone provider and explain the situation. Some networks in some countries, such as Vodafone in the United Kingdom, will refund all charges made to a proven fraudulent number within thirty days.
You may also find that some networks, without having an explicit Wangiri scam refund policy, are likely to compensate victims, in good faith. Of course, this depends entirely on how generous your phone provider feels, how good a customer you are and perhaps your ability to convince them.
If they do not want to reimburse you, you may be allowed to split the cost of the call into installments, especially if you have an unusually large bill.
Finally, you should report your experience to the competent authorities, who can investigate.