![]() To avoid vishing attacks, the call recipient needs to check whether the caller is a trusted entity. In 2011, for example, the damage due to vishing in Korea was estimated to be about USD 90 million, which was roughly double that of 2010. Such factors have led to an increase in vishing attacks. Moreover, the use of the telephone itself means that certain population groups, such as the elderly, are more vulnerable to vishing. As legitimate callers also often ask for such confidential information over the phone, it's not easy for people to distinguish between a visher and a legitimate caller. Scammers, called vishers, use phone calls to deceive victims into disclosing confidential information or transferring money, by masquerading as a trusted authority (for example, a government agency, bank, etc). Voice phishing (vishing) is a variant of phishing.
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