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A timeline of South Korean telco giant SKT’s data breach


In April, South Korea's telco giant SK Telecom (SKT) was hit by a cyberattack that led to the theft of personal data on approximately 23 million

“SK Telecom considers this incident the most severe security breach in the company’s history and is putting forth our utmost effort to minimize any damage to our customers,” a spokesperson at SKT told TechCrunch in an emailed statement. SKT found unusual logs and signs of files having been deleted on equipment that the company uses for monitoring and managing billing information for its customers, including data usage and call durations. TeamT5, a cybersecurity company based in Taiwan, alerted the public to the worldwide threats posed by a linked to China, which allegedly took advantage of vulnerabilities in Ivanti’s Connect Secure VPN systems to gain access to multiple organizations globally.

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