[Abstract]

Email, since its invention, has become the most widely used communication system and SMTP is the standard for email transmission on the internet. However, SMTP lacks built-in security features, such as sender authentication, making it vulnerable to attacks, including sender spoofing. To address the threat of many attacks, several security extensions, such as SPF, DKIM, DMARC, and DANE, have been proposed; However, deploying and managing the protocols while assuring backward compatibility is challenging, thus leading to many misconfiguration and attacks. In this talk, I will overview such protocols, their deployment and management challenges, and exploit to launch DDoS attacks.

[Biography]

Taejoong (Tijay) Chung is an Assistant Professor at the Computer Science department at Virginia Tech and Adjunct Professor at the Computer Science department at POSTECH. Before joining Virginia Tech, he spent 2 years at RIT as an Assistant Professor. He received his Ph.D. in Computer Science and Engineering from Seoul National University in 2015. His work focuses on Internet security, privacy implications, and Internet measurement. He was a MANRS Research Fellow (2022), received the ACM CCS Best Paper Honorable Mention Award (2022), IRTF Applied Networking Research Prize (2019), ACM IMC Distinguished Paper Award (2019), NSF CRII Award (2019), and USENIX Security Distinguished Paper Award (2017).