[Resolved][Severity: Moderate][Misdelivery]

CYBIRD: an email to 2,015 Detective Conan quiz applicants showed everyone's addresses

When the quiz office emailed all applicants at once, every recipient could see the others' addresses.

Disclosed

2020-05-20

Organizations involved

Leaked or at risk

2,015

Downtime

Unknown

Impact

Email addresses of 2,015 applicants to the first Detective Conan quiz in October 2019 were visible to all recipients of a message sent on 2020-05-19. The company apologized by email the same day and asked recipients to delete it. [1] [2]

Timeline

Disclosed 2020-05-20
1 days

Attack or cause

Method: [Misdelivery]
Impact: [Data leak]
Entry point: E-mail

Data exposed or at risk

[E-mail address]

Organizations involved

[Breached][Moderate]Tokyo, ShinagawaInformation and communications2,015 leaked
CYBIRD Co., Ltd.

						Note
CYBIRD Co., Ltd.	[Breached]	[Moderate]	Tokyo, Shinagawa	Information and communications	2,015

Open in organization search

Sources

[1][News]「名探偵コナン検定」案内メール誤送信でアドレス流出、本誌取材に回答なし（サイバード）ScanNetSecurity · 2020-05-26 08:00
[2][News]「名探偵コナン検定」でメール送信ミス - メアド流出Security NEXT · 2020-05-21