This book constitutes the refereed proceedings of the Second International Conference UbiSec 2022 held in Zhangjiajie China during December 28���31 2022.<div><br></div><div>The 34 full papers and 4 short papers included in this book were carefully reviewed and selected from 98 submissions. They were organized in topical sections as follows: cyberspace security cyberspace privacy cyberspace anonymity and short papers.</div>
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