Isejin Honsha: an intruder used one of its mail accounts to send spam

One mail account of the hotel operator was taken over late on July 10 and used to send unwanted mail to many addresses.

Disclosed

2020-07-14

Organizations involved

Leaked or at risk

Unknown

Downtime

Unknown

What happened

2020-07-10
Late at night, one mail account was accessed without permission and used to send unwanted mail. [1]
2020-07-14
Public disclosure; recipients were asked to delete the mail without opening it. [1]

Checks with an outside firm found no sign of data being taken or of customer data leaking. The account password was changed. [1]

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						Note
Isejin Honsha Co., Ltd.	[Breached]	[Moderate]	Ibaraki, Mito	Accommodation, food and drink	Unknown