On November 5, the official website for global boy group JO1 announced that email addresses of its fan club and mail service members may have been leaked. This is due to unauthorized access to "Arara Message," an external email delivery service used by their operating company, Fanplus. An investigation is currently underway to determine if addresses were actually leaked.
JO1 is a group that debuted in 2020, formed from the 2019 audition program "PRODUCE 101 JAPAN." Their official fan club, "JO1 OFFICIAL FANCLUB," offers advance ticket reservations and member-exclusive videos and photos. A separate service, "JO1 Mail," allows members to receive emails from their favorite members.
On November 2, Fanplus and Ticketplus announced that an email address leak affecting some customers using the group's services was discovered due to unauthorized access to Arara Message. Those potentially affected are customers registered with the common ID "Plus member ID" and using various services.
The Fanplus Group immediately ceased using Arara Message and is progressively switching to an alternative email delivery method. As of the November 2 announcement, no unauthorized access to the group's own various services or information leaks from the systems of each service have been confirmed. The possibility of leaks for information other than email addresses has also not been confirmed.
The JO1 official website is urging caution regarding suspicious emails impersonating the fan club or mail service.
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