CROCO: a mail magazine of its writing service desk was sent with another delivery list set as the body, showing 2,752 subscribers' email addresses to 21,757 recipients

1. 2021-03-15 22:00

   Around this time, the operations office of the article writing service Shinobi Writing began sending a mail magazine announcing a webinar. In the delivery system, another delivery list had been set by mistake in the place for the email body. [1] [2] [3]

2. 2021-03-16

   The company emailed recipients to apologize for the leak of email addresses and ask them to delete the mail, and published a notice the same day. [1] [2]

The body of the mail seen by some recipients showed 2,752 email addresses unrelated to the subject. In total 21,757 copies were sent. Only the email address strings leaked and no other data was included. [1] [2] [3]

The company will review its delivery procedure and fix the system, combining delivery work by several people with an automatic check of the content by the system. [1] [2]