The second event in iFREE GROUP Innovation and Research Centre Colloquium Series 2021/22 seminar "Ad-Hoc Security for Smart Things" concluded successfully on 1 December 2021. It was a great honor to have Dr. Gerhard Petrus Hancke as our guest speaker for sharing. Through this seminar, participants would better understand the idea of security issues in IoT. Some of the event photos could be seen as below: