Business · Companies · 12 hrs ago
GMO to book ¥3.05 billion for customer payments after cyberattack
GMO Internet Group plans about ¥3.05 billion in customer payments after a subsidiary was hit by a cyberattack.
The incident involved its Onamae.com Desktop Cloud service and unauthorized transactions in customers’ foreign-exchange accounts.
GMO said it will set aside ¥3 billion for affected users and ¥54 million as goodwill payments for all customers.
By Thursday, it had received claims for 2,943 accounts totaling ¥2.99 billion.
The company said attackers also posted information about an account holder online after GMO refused a ransom demand, but it reported no further damage.
The payments address losses and damage to customer trust, which the company said mattered beyond the financial cost.
GMO has insurance cover of up to ¥1.1 billion and is checking whether it applies; it has not given an earnings outlook for 2026 because market movements make forecasting difficult.
GMO Internet Group said it will book around ¥3.05 billion in losses for customer compensation and goodwill payments after a subsidiary was hit by a cyberattack.
The company plans to set aside ¥3 billion for users with unauthorized foreign-exchange account transactions and ¥54 million as goodwill for all customers.
As of Thursday, it had received claims covering 2,943 accounts and ¥2.99 billion.
GMO said it had insurance for up to ¥1.1 billion and was examining whether the coverage applied.
The company said attackers disclosed an account holder’s information online after it refused to pay a ransom.
- Who
- GMO Internet Group and customers affected by unauthorized transactions.
- What
- GMO plans to book around ¥3.05 billion for compensation and goodwill payments after a cyberattack.
- When
- The company announced the plan on Friday, November 13, 2026.
- Where
- The attack involved GMO’s Onamae.com Desktop Cloud service. The location of the attack is not stated.
- Why
- A subsidiary was hit by a cyberattack, and users experienced unauthorized transactions in foreign-exchange trading accounts.
This story does not have two clearly opposing sides.
A GMO subsidiary was hit by a cyberattack.
GMO said it had confirmed unauthorized access and transactions using its Onamae.com Desktop Cloud service.
Attackers disclosed an account holder’s information online before it was taken down.
GMO had received claims covering 2,943 accounts and ¥2.99 billion.
GMO said it would book around ¥3.05 billion in losses for compensation and goodwill payments.
- Planned loss
- Around ¥3.05 billion
- Compensation provision
- ¥3 billion for users with unauthorized foreign-exchange account transactions
- Goodwill provision
- ¥54 million for all customers
- Claims received
- 2,943 accounts worth ¥2.99 billion as of Thursday
- Insurance
- Coverage of up to ¥1.1 billion; applicability under review
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What people are saying
We deeply regret the damage wrought to the trust of our customers and society, which outweighs the financial amount involved.