Harmonic, which is headquartered in Sanjo City, Niigata Prefecture and operates a mail-order site for catalog gifts, has announced that it is possible that up to 28,000 users' credit card information may have been leaked due to unauthorized access.
According to "Harmonic", in February, the card company contacted the customer who used the catalog gift mail order site operated by the company about the leakage of credit card information, and when he investigated it, unauthorized access was confirmed. is.
The number of cases that may have been leaked is up to 28,700, including the card numbers of users who made payments with credit cards on the catalog gift mail order site from November 14th to November 11th last year. about it.
In addition, personal information such as the user's name and address may have leaked up to 150,000.
The company reported the damage to the police in May, but announced it on the 13th, about five months after the problem was grasped.
Regarding the reason for the delay in the announcement, the company explained, "We have decided that it is essential to make an announcement after making preparations to minimize the inconvenience to our customers."