• An End-to-End Large-Scale Measurement of DNS-over-Encryption: How Far Have We Come?
    DCAPS, DC, Dec. 2019
  • Who Is Answering My Queries: Understanding and Characterizing Interception of the DNS Resolution Path.
    – ANRW, Montreal, CA, July, 2019 [slides]
  • Towards a Trustworthy DNS Infrastructure – Why is it hard and where are we now?
    – Palo Alto Networks, Aug., 2019
    – Tsinghua University, June, 2019
  • BadBluetooth: Breaking Android Security Mechanisms via Malicious Bluetooth Peripherals
    – Qualcomm, San Diego, Mar. 2019
    – Inforsec RAID’19 workshop, Beijing, Sept. 2019
  • Big-Data Security Research Meets Enterprise: Challenges and Opportunities.
    – BU/MIT LL Cybersecurity Workshop, Boston, Jan. 2016
    – Baidu Inc., China, Apr. 2016
    – University of Massachusetts Lowell, Nov. 2016
  • Every Second Counts: Quantifying the Negative Externalities of Cybercrime via Typosquatting.
    – Chinese Academy of Sciences, China, Nov. 2015
  • Understanding and Detecting Malicious Activities in Internet.
    – Tsinghua University, China, Dec 2014
    – The Chinese University of Hong Kong, China, Jan 2015
  • Understanding and Detecting Malicious Activities in Web.
    – IBM Research, Apr 2013
    – RSA Labs, Apr 2013