Skip to content
Deepak Gupta markTech Fines

KTfines & penalties

KT Corporation

One of South Korea's three national mobile carriers. Its PIPC penalty followed a breach in which hackers used rogue femtocells to intercept subscriber data and make fraudulent mobile payments.

Penalties
1
Total penalties (excl. tax recovery)
≈ $39Mexcludes annulled
Largest
$39M
Span
2026 to 2026

Every recorded penalty

1 penalty

KT · 2026

KT fined KRW 53.979B over a rogue femtocell data breach

Not yet final

South Korea's PIPC found that hackers extracted authentication credentials from KT's femtocells, loaded them into rogue femtocells and used them to reach KT's network, intercepting traffic between subscribers' phones and the network from October 2024 to September 2025. The commission held that KT owned and operated the femtocells and failed to apply baseline access controls to its internal network.

PIPC · South Korea₩54B≈ $39M