Seoul Metropolitan Government security incident history
Hacking, data breaches and other security incidents involving Seoul Metropolitan Government, with related coverage.
Ttareungyi server hack leaks 4.62 million subscriber records
4.6MImpact: About 4.62 million records of subscriber personal information
In June 2024, the Ttareungyi server was hacked, leaking about 4.62 million records of subscriber personal information. The leaked data included user IDs, mobile phone numbers, email addresses, home addresses and dates of birth. Police referred two teenagers, who were middle school students at the time of the crime, to prosecutors without detention, and Seoul Mayor Oh Se-hoon apologized for the personal data leak.
Related reports: 27 · last report →Hacked Seoul citizen email accounts used in phishing posing as officials
Impact: Hacking of some Seoul citizen email accounts
Some Seoul citizen email accounts were hacked and used to send phishing emails impersonating public officials. The emails, which proposed a virtual meeting about anti-North Korea leaflets, carried attachments with hidden malware. With North Korean hackers suspected, police raided Seoul City Hall and secured the relevant account information.
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