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SUMMARY

Names, addresses and telephone numbers of 3,996,789 customers, including some dates of birth and email addresses leaked
Records	3,996,789
Record Types	NAA EMA DOB
Breach Type	Unknown
Data Family	Electronic
Source	Unknown
Organization	KDDI
Other Affected/Involved Organizations	None
Lawsuit?	NO/UNKNOWN
Data Recovered?	NO/UNKNOWN
Arrest?	NO/UNKNOWN
Submitted By:	Anonymous

Date	Event
None. Add Data	Incident Occurred
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None. Add Data	Incident Discovered By Organization
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2006-06-13	Organization Reports Incident
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None. Add Data	Organization Mails Notifications
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None. Add Data	Records Recovered
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None. Add Data	Lawsuit Filed
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None. Add Data	Arrest Made
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records	date	organizations
5,000,000	2003-01-21	Mobile TeleSystem (MTS)
3,500,000	2011-12-02	Blanca Games

Address: Tokyo, Japan
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No known costs for this incident.

Ponemon Institute Direct Costs Estimate ¹

$239,807,340.00

Note that these estimates are based on the Ponemon Institute's 2009 direct costs figures from their 2009 Annual Study: Cost of a Data Breach. We multiply $60.00 by the number of records to obtain this figure. Keep in mind that depending on the breach, the direct costs are not always suffered by the breached organizations. In the case of credit card number breaches, the direct costs can often be suffered by banks and card issuers. Also note that this is only an estimate.