A First Look at Brand Indicators for Message Identification (BIMI)

Masanori Yajima*, Daiki Chiba, Yoshiro Yoneya, Tatsuya Mori


研究成果: Conference contribution


As promising approaches to thwarting the damage caused by phishing emails, DNS-based email security mechanisms, such as the Sender Policy Framework (SPF), Domain-based Message Authentication, Reporting & Conformance (DMARC) and DNS-based Authentication of Named Entities (DANE), have been proposed and widely adopted. Nevertheless, the number of victims of phishing emails continues to increase, suggesting that there should be a mechanism for supporting end-users in correctly distinguishing such emails from legitimate emails. To address this problem, the standardization of Brand Indicators for Message Identification (BIMI) is underway. BIMI is a mechanism that helps an email recipient visually distinguish between legitimate and phishing emails. With Google officially supporting BIMI in July 2021, the approach shows signs of spreading worldwide. With these backgrounds, we conduct an extensive measurement of the adoption of BIMI and its configuration. The results of our measurement study revealed that, as of November 2022, 3,538 out of the one million most popular domain names have a set BIMI record, whereas only 396 (11%) of the BIMI-enabled domain names had valid logo images and verified mark certificates. The study also revealed the existence of several misconfigurations in such logo images and certificates.

ホスト出版物のタイトルPassive and Active Measurement - 24th International Conference, PAM 2023, Proceedings
編集者Anna Brunstrom, Marcel Flores, Marco Fiore
出版社Springer Science and Business Media Deutschland GmbH
出版ステータスPublished - 2023
イベント24th International Conference on Passive and Active Measurement, PAM 2023 - Virtual, Online
継続期間: 2023 3月 212023 3月 23


名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
13882 LNCS


Conference24th International Conference on Passive and Active Measurement, PAM 2023
CityVirtual, Online

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータサイエンス一般


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