Hacker News
Data breach exposes up to 14.2M email logins at six ISPs
37 points by Brajeshwar
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4 comments
spidercat
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This pertains to Japanese ISPs. From the article:
KDDI Corporation, STNet, Inc., JCOM Co., Ltd., Chubu Telecommunications C., Inc., NIFTY Corporation, and BIGLOBE Inc.
KDDI seems to have been the root of the breach, as the other listed ISPs were relying on their email infrastructure/systems.
Seems like the actual scale is unknown, and many of the leaked passwords were, according to KDDI, hashed.