Daiwa Securities says info on 110,000 clients may have been leaked
After the peak, new reports halved every 14 hours so far - this story is still being covered, so the figure moves as reports arrive.
What it is about
Who published it, and when
How it spread - 35 original reports
Mon, 5 October 2026
2 reports- Japan Times07:12first to report
The brokerage said the leak resulted from the servers of an external vendor being hacked.
- Anadolu Agency (AA)14:56
Restaurant operator reports massive customer data leak, while brokerage says information belonging to around 110,000 clients may have been compromised
Tue, 6 October 2026
1 report- Anadolu Agency (AA)10:12
Retailer Mr Max reports separate breach affecting up to 1.7M customers
Wed, 7 October 2026
2 reports- Japan Times04:13
Authorities are trying to get to the bottom of the situation after more companies across various sectors reported data breaches.
- thearabianpost.com09:01
Nikkei has disclosed unauthorised access to two employee cloud accounts with one compromised Microsoft 365 mailbox used to send about 9 000 phishing emails
Sat, 10 October 2026
1 report- Japan Times01:31
The companies respectively said that they had found no evidence of unauthorized use of the affected information by third parties.
Wed, 14 October 2026
1 report- Japan Times03:26
The affected data includes the personal information of users of the company's Gin no Sara, Sushi Joto and Kamatora delivery services.
Thu, 15 October 2026
2 reports- South China Morning Post00:00
Japanese companies have faced a growing wave of cyberattacks in recent weeks, exposing millions of customers’ records as analysts warn that artificial intelligence is helping hackers exploit long-standing security weaknesses and overcome language barriers that once offered some protection. More than 500 breaches of corporate systems were reported in the year to this month, surpassing the total for all of 2025, the Yomiuri newspaper reported last week. On October 7, a ransomware attack on IDC...
- livemint.com18:37
Rising cyberattacks and online fraud underscore the risks of identity theft and financial loss. Personal cyber insurance may cover eligible incidents, including phishing and unauthorised transactions. Here's all you need to know.
Sat, 17 October 2026
1 report- Japan Times02:04
More firms have disclosed details of data breaches that could affect millions of customers.
Mon, 19 October 2026
3 reports- Japan Times06:00
The Japan Times, Ltd. and News2u Holdings, Inc. (Chiyoda-ku, Tokyo; hereinafter "our Group") hereby provide an update on the progress of the investigation and monitoring being conducted in cooperation with external specialized organizations regarding the unauthorized access to our Group managed server, originally announced by The Japan Times, Ltd. on October 2, 2026.
- Japan Times11:08
According to the survey, 30.2% of large companies suffered or potentially suffered breaches, significantly higher than 14.3% among small businesses.
- tokyoreporter.com23:37
A relentless wave of cyberattacks has battered major Japanese corporations, compromising over 1.8 million personal records
Tue, 20 October 2026
1 report- Japan Times07:09
The threat of cyberattacks for Japanese companies has grown recently, as the number of companies disclosing data breaches continues to rise.
Wed, 21 October 2026
4 reports- Channel News Asia03:36
- Times of India09:23
The State Bank of India has confirmed that 3,897 customer records may have been compromised and found on the dark web. Following alerts from cybersecurity agencies, an initial investigation revealed that sensitive personal data such as mobile numbers and loan details were involved. SBI has initiated its cyber incident response plan and is actively looking into the breach's validity and origins.
- scroll.in10:12
More than 3.75 lakh records had been compromised, a preliminary investigation by the public sector bank found.
- ibtimes.co.uk12:23
State Bank of India says 3,897 customer records containing personal information were identified in suspected dark-web data, while an independent agency investigates the exposure.
Thu, 22 October 2026
2 reports- gamingbolt.com00:00
The company has confirmed that around 11.7 million email addresses were affected along with deeper details of a few accounts.
- Times of India00:10
The disclosure follows a claim by cybersecurity monitoring account CyberPulse that a threat actor using the name Siriusim had leaked documents and personal data allegedly linked to SBI. The post claimed the dataset contained 3,75,000 rows in CSV files and 2,722 PDF documents, including customer information, loan applications, supporting documents, account-opening forms and addresses.
Fri, 23 October 2026
1 report- Japan Times11:00
The Japan Times, Ltd. and News2u Holdings, Inc. (Chiyoda-ku, Tokyo; hereinafter "our Group") hereby provide an update on the current status and response for our business partners and former employees regarding unauthorized access to our Group managed server and the potential exposure of information.
Sat, 24 October 2026
2 reports- Japan Times08:21
The company has confirmed that about 6.62 million user accounts were compromised.
- Channel News Asia15:04
Alliance Medinet provides services to several insurers, including HSBC Life, Singlife and Income Insurance, which have reported being affected by the incident.
Mon, 26 October 2026
8 reports- Google News - Top Stories01:48
Japanese companies compensate users as cyberattacks buffet economy Reuters GMO Traders’ FX Assets Vanish Due to Unauthorized Access; Investors Also Fear Exposure of Personal Information The Japan News Security concerns flagged within Japanese firm GMO before breach: CEO Japan Today GMO asks government to take active cyberdefense measures The Japan Times OANDA Japan implements transaction restrictions on accounts of customers affected by unauthorized access FX News Group
- Channel News Asia01:51
Japan's GMO Internet Group is compensating customers for losses stemming from unauthorised access following a cyberattack on its foreign exchange trading service.
- Channel News Asia01:51
- Channel News Asia01:51
- South China Morning Post02:37
Japanese companies are moving to pay compensation to users following waves of cyberattacks that have disrupted internet services and raised concerns about economic stability. GMO Internet Group, a leading provider of online financial services, said customers would be compensated for losses stemming from unauthorised access following a cyberattack on its foreign exchange trading service, and all customers would receive 5,000 yen (US$32) as “an initial gesture of good faith”, CEO Masatoshi...
- indiatimes.com02:56
Rs 1.64 Crore Fraud: Kochi City Police investigate a significant cyber fraud where impersonators duped Lulu Group of Rs 1.64 crore by using fraudulent emails that mimicked a legitimate Italian business partner.
- dunyanews.tv10:15
Japanese companies are offering compensation after cyberattacks disrupted services and exposed data. GMO will pay affected users, while Park24 plans payments following a data breach.
- El País (Spain)16:00La japonesa GMO se desploma en Bolsa después de un ciberataque: “Internet está al borde del colapso”
El conglomerado tecnológico cae un 15%, promete compensar económicamente a los clientes afectados y asegura que no pagará el rescate que exigen los ciberdelincuentes
Tue, 27 October 2026
3 reports- itnews.com.au00:00
"The internet itself is now starting to break down".
- techcrunch.com13:32
Japan's GMO Internet is verifying alleged customer data posted by suspected hackers following a cloud service breach.
- Le Figaro (France)19:45
RÉCIT - Les hackeurs de ce site très populaire orchestrent depuis une semaine un chantage à la publication de données confidentielles.
Wed, 28 October 2026
1 report- Anadolu Agency (AA)13:52
Hacker believed to be behind recently discovered unauthorized access incident disclosed customer information after company failed to respond to ransom demand