A concerning surge in voice phishing (phone-based financial fraud) has been reported in South Korea during the first quarter of 2025, according to data released by the National Police Agency. The number of cases jumped by 17% compared to the same period last year, with a staggering 5,878 incidents recorded between January and March. The financial toll on victims has been immense, exceeding 300 billion Korean won (approximately $220 million USD).

The average loss per case has also seen a dramatic increase, reaching 53.01 million won, a 2.8-fold rise from the first quarter of 2024. The total amount swindled from victims more than doubled, climbing to 311.6 billion won, highlighting the growing sophistication and effectiveness of these criminal operations.

A prevalent tactic employed by these fraudsters involves impersonating officials from investigative agencies or financial authorities. This type of scam accounted for over half of all reported cases, totaling 2,991 incidents. Victims are often contacted via phone calls or text messages under various pretenses, including alleged card delivery issues, pending case inquiries, loan applications, or even alarming notifications related to deaths, traffic fines, health reports, or unauthorized overseas card transactions.

The ultimate goal of these initial contacts is to trick individuals into installing malicious applications on their smartphones. Once installed, these apps grant the perpetrators access to sensitive personal information such as names, phone numbers, device models, and mobile carriers. Alarmingly, the criminals can also remotely control the infected devices and track the victim's real-time location.

Adding to the deceptive nature of these scams, the fraudsters often manipulate caller IDs to display genuine phone numbers belonging to legitimate institutions like the Financial Supervisory Service or the Public Prosecutor's Office. However, the malicious app reroutes the calls to the scammers' own numbers, creating a convincing illusion of authenticity.

This sophisticated manipulation often targets individuals less familiar with digital technology, making older demographics particularly vulnerable. In the first quarter of this year, individuals aged 50 and above constituted 53% of all voice phishing victims. This trend marks a significant increase from 32% in 2023 and 47% in 2024, indicating a deliberate targeting of this demographic.

Police are urging the public to exercise extreme caution when receiving unsolicited communications involving specific keywords such as "case inquiry," "special security" or "embargo," "summary investigation" or "probation," "asset inspection" or "asset transfer," and requests for "submission of feedback." These phrases are frequently used by scammers to create a sense of urgency and authority.

Kwak Byung-il, head of the National Police Agency's Drug and Organized Crime Investigation Division, acknowledged the escalating sophistication and organization of voice phishing crimes. He assured the public that the police are committed to an all-out effort to combat this growing threat and protect citizens from these damaging scams. The significant increase in both the number of cases and the financial losses underscores the urgent need for heightened public awareness and robust law enforcement action to curb this criminal activity.

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