Police have served another warrant on a 25-year-old man who was arrested on suspicion of a “phishing” fraud, in which he allegedly stole and used personal information from Yahoo Japan’s Internet auction service users, the Metropolitan Police Department said Tuesday.

Police allege that Sunao Koizumi, using stolen user IDs and passwords, won about 300 bids for book vouchers and travel coupons worth some 5.5 million yen, which he then resold.

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