Dangers of IP Camera - An Observational Study on Peeping. - Kazuki Tamiya; Aamir H. Bokhari; Yuta Ezawa; Sou Nakayama; Ying Tie; Rui Tanabe; Akira Fujita; Katsunari Yoshioka; Tsutomu Matsumoto (J. Inf. Process., 2020)