In October 2025, a 20-year-old man threatened his 16-year-old ex-girlfriend and her family in Eunpyeong-gu, Seoul, after she posted breakup text messages on Instagram. He threatened to distribute private photos of her and intimidated her family, especially her father, with weapon threats. The case was reported as blackmail. During investigation, the man was also found guilty of lending his bank account for voice phishing. He was sentenced to 10 months in prison with a 2-year suspended sentence and probation.
Country: South Korea
State/Province: None
City/Region: Eunpyeong-gu
Incident Type: Non-Murder
Relationship Status: Ex-partners
Relationship Duration:
Incident Date: None
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Relationship Stages:
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Motives:
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How the relationship or connection began.
Important relationship phases recorded for this case.
Reported red flags or early concern points.
Contributing factors and possible motives from the available sources.
Recorded relationship or case outcome.
English labels are shown first. Original-language titles are preserved for source verification.
김복준의 사건속으로 · Original language: Korean
Man threatens ex-girlfriend and her family with a weapon after breakup
Jealousy
The incident involves a breakup between a young couple where the ex-boyfriend reacted to the breakup by threatening to distribute private photos and intimidating the victim's family with weapon threats. This pattern reflects jealousy and coercive control dynamics common in relationship-driven blackmail cases.
The case was reported as blackmail. The suspect was also charged with violating the Real Name Financial Transaction and Confidentiality Act for lending his bank account for voice phishing. The Seoul Western District Court sentenced him to 10 months imprisonment with a 2-year suspended sentence and probation. The photos threatened to be distributed were not secured, but the threat alone established blackmail. The suspect received leniency due to his age.
Uncertainty exists about the nature and consent regarding the photos threatened for distribution. The exact content of the photos is unknown and only speculated.
The 16-year-old girl posted breakup text messages on Instagram. The 20-year-old ex-boyfriend threatened to post private photos of her and intimidated her family with weapon threats. The victim reported the threats as blackmail. During investigation, the suspect was also found guilty of lending his bank account for voice phishing. The court sentenced him with a suspended prison term and probation.
The suspect demonstrated threatening behavior and coercive control, including intimidation of family members, indicating a high risk of escalation if not legally restrained.
Posting intimate breakup messages publicly can trigger retaliatory threats and blackmail. Threats involving private photos and family intimidation are serious red flags. Legal consequences can include blackmail charges and financial crime penalties. Age and relationship dynamics influence judicial leniency.
The ex-boyfriend's threat to distribute private photos and intimidation of the victim's family were the most significant early signals.
The victim's Instagram story posting of breakup messages and the suspect's threatening messages to the victim and her family helped connect the case.
Text message threats and the victim's Instagram story were the strongest evidence types reported.
Not reported.
No follow-up reports beyond the court sentencing were available.
The exact nature and consent status of the photos threatened for distribution remain unclear.