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Hacker discloses GMO customer info after not getting ransom
GMO says it will reimburse customers, and five foreign exchange trading firms have reported affected customers to Japan's financial regulator; the advice was to unplug.
Watch it as it aired: Gloria Vance and Kenji Moonfield on this story, from BBN After Hours at 4:04 AM ET. Cartoon anchors, real headline: the facts are Japan Today's, the jokes are ours.

At a glance
- First reported by Japan Today: “Hacker discloses GMO customer info after not getting ransom”, with reporting from Finance Magnates, Yahoo Finance UK, BigGo Finance, Bernama (Kyodo) and TokyoReporter.
- Covered on BBN on Tuesday, October 27, 2026, at 4:04 AM ET on BBN After Hours, by Gloria Vance and Kenji Moonfield.
The real story
The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.
- Japan TodayHacker discloses GMO customer info after not getting ransom
- Finance MagnatesHackers Publish Alleged GMO Customer Data as Broker FXTF Shuts Out Overseas Logins October 27, 2026 · facts used on air
- Yahoo Finance UKJapan’s GMO Internet warns users of impending ransomware attack October 27, 2026 · facts used on air
- BigGo FinanceHackers Threaten to Leak Customer Data in Cyberattack on Japan's GMO After $1 Million Ransom Demand Rejected — BigGo Finance October 27, 2026 · facts used on air
- Bernama (Kyodo)BERNAMA - Japan’s GMO Says Hacker Threatens To Disclose Customer Data At Noon October 27, 2026 · facts used on air
- TokyoReporterHackers demand $1M ransom from GMO, users urged to ‘pull the plug’ on PCs - TokyoReporter October 27, 2026 · facts used on air
What BBN said about it

Gloria Vance · World News AnchorA pie is judged on the day it's baked. A ransom, apparently, is judged on the day it isn't paid.

Gloria Vance · World News AnchorIn Japan, a hacker has published customer information from GMO Internet Group.

Kenji Moonfield · Internet & Trends CorrespondentSo they asked for money, didn't get it, and just posted the stuff?

Gloria Vance · World News AnchorYes. It's the foreign exchange trading service, Onamae dot com Desktop Cloud, a Windows service widely used for automated currency trading.

Gloria Vance · World News AnchorTokyoReporter puts the demand at one million dollars, though that amount is disputed.

Kenji Moonfield · Internet & Trends CorrespondentA disputed ransom. Even the extortion has a comments section.

Gloria Vance · World News AnchorGMO told account holders to back up their data, turn off their computers and unplug them from the power supply before noon.

Kenji Moonfield · Internet & Trends CorrespondentUnplug them?

Gloria Vance · World News AnchorUp to twenty-six thousand seven hundred thirty-nine servers may have been exposed, though GMO says that is not a count of confirmed intrusions.

Gloria Vance · World News AnchorThe finance minister says five trading firms have reported affected customers.

Kenji Moonfield · Internet & Trends CorrespondentSo what does the company say it will do for the people who lost money?

Gloria Vance · World News AnchorGMO says it will reimburse customers for their losses.

Gloria Vance · World News AnchorIt also collected PCs from across Japan, and none examined by late morning showed malware, which it says does not prove every device is safe.

Gloria Vance · World News AnchorSo the evidence so far is a leak, a deadline and a power cord.

Gloria Vance · World News AnchorI would call that a national security posture built around a power strip.

Kenji Moonfield · Internet & Trends CorrespondentJapan's most advanced response to a hacker is the cord from the wall.
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Photo: Kevin Payravi · CC BY-SA 4.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 4.0
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Photo: Daniel Torok · Public domain · Wikimedia Commons · altered by BBN
Photo: Daniel Torok · Public domain · Wikimedia Commons · altered by BBN
Photo: BigRiz · CC BY-SA 3.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 3.0





