https://www.koreatimes.co.kr/www/tech/2021/11/133_318025.html
KT to pay W40 bil. in compensation for network outage
KT will pay out up to 40 billion won ($33.97 million) in compensation to
customers of its wired and wireless services, which underwent nationwide
disruptions Oct. 25, the company said.
[...]
KT said it will pay compensation for 10 times the disruption time of 89
minutes...
[...]
NTT Docomo, AT&T, Verizon and T-Mobile caused disruptions in services for
subscribers (customers) in recent years, but none offered compensation.
"We are offering the greatest level of compensation compared to both local
and foreign companies in the same industry," a KT official said.
[...]
The Ministry of Science and ICT said the mistake of an employee of a KT
subcontractor caused the nationwide disruption.