Nitori says breach may have exposed up to 37.62 million records
The retailer found unauthorized access on November 6 and says intruders may also have been inside its systems in mid-to-late October, with corporate members among those affected.
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Personal Information
Docomo says ID document numbers leaked in breach, weighs compensation
The carrier widened its list of exposed data to include identity-verification document numbers and contract details, and says it is considering payments to affected users.
Nitori says data on up to 37.62 million customers may have leaked
The furniture giant confirmed unauthorized access to its systems on Nov. 6, with names, addresses and purchase histories possibly exposed.
Japan logs record 233 cyberattack disclosures in October as leaked personal data nears 185 million
Unauthorized access at the printing service Rakusul may have exposed print data and invoice details, as Trend Micro links a surge in leaks to autonomous AI-agent attacks.
Japan's firms are 'data drunks,' privacy law expert says, as leaks mount
Hiroshi Miyashita of Chuo University says companies collect personal data they do not need and will not delete, and that keeping less would be the best defense against cyberattacks.
Toyohashi says citizen email addresses may have leaked after contractor hack
A Tokyo company handling My Number card appointment emails for the city was breached on October 28, and the city has halted reservation messages while it checks the system.
H2O Retailing president apologizes after 1.26 million customer records leak at Hankyu Hanshin department stores
The parent company's chief executive said sorry at a half-year earnings briefing after unauthorized access to three booking sites exposed names and addresses, and a separate breach at an email contractor exposed about 28,000 addresses.
Seven-Eleven Japan says contractor's platform breached, customer names leaked
More than 160,000 orderers' names were exposed after unauthorized access to a system run by a company handling part of the 7NOW delivery service. Card details and passwords were not affected, the chain says.
Nara food site's old domain taken over by third party, county warns
The prefecture says a contractor forgot to renew the address, and a near-copy of the promotional site now appears there.
Japan's security awareness association hit by unauthorized access, up to 15,128 records possibly leaked
JNSA took its information-security quiz service offline after confirming the breach on November 4, and says it has not yet traced how the intruder got in.
Azone closes its own online store, moving to hold as little customer data as possible
The doll maker shut its AZONET shop after a breach exposed customer email addresses, and will keep selling through Rakuten instead. Other chains are also shedding the data they keep.
Japan government warns website and app operators after repeated data leaks
The National Cybersecurity Office says it found multiple cases where basic safeguards were missing, and that AI is likely helping attackers find weak systems at scale.
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