Osegi
Security·2 min read

Bic Camera Group: 14.9 Million Email Addresses May Have Leaked

Bic Camera, Kojima and Sofmap say about 14.9 million records, including email addresses, may have leaked after unauthorized access to their email delivery contractor Arara.

Storefront of a Japanese electronics retailer with a digital padlock overlay symbolizing a data breach affecting email addresses.
Image: ITmedia NEWS

Bic Camera, Kojima and Sofmap announced on November 2 that about 14.9 million records, including newsletter subscribers' email addresses, may have been exposed. The figure is the combined total for the three companies. They say credit card data and login credentials for their online shops are not affected.

The cause is unauthorized access to Arara, the contractor that delivers email for all three retailers. After learning of the possible leak, the companies stopped data transfers to Arara's service and are working with the contractor to determine the scope of the impact. Each company will notify affected customers directly. As of the announcement, no secondary damage had been confirmed, and the companies urged customers to be wary of suspicious emails impersonating them or Arara.

A wider breach at the email provider

Arara said the same day that about 77 million email addresses may have leaked from its "Arara Message" email delivery service. It estimates up to roughly 380 client companies were affected, and for some of them names and addresses were also exposed. Arara's systems were also found to have sent up to about 7.13 million emails impersonating credit card companies between October 28 and 30.

Asoview, which runs a leisure and experience booking service, said on November 3 that about 15.82 million member records had leaked in the same incident.

Why it matters

Unauthorized access to email delivery services has been recurring since October. Arcadia, which delivers disaster-prevention information for local governments, along with Yumeru Link and Rakus Light Cloud, the operator of Blast Mail, have also disclosed leaks or possible leaks.

The case shows how a single outsourced vendor can expose the customer data of hundreds of companies at once. For consumers, the main risk is phishing: leaked addresses can be used to send convincing fake messages, so unexpected emails that appear to come from retailers or card issuers should be treated with caution.

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Tags:bic cameraararadata breachemail securityjapansupply chain attack

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