“Scenery reflected in the eyes” is a woman's home specific for idol activity as a clue or Oct. 16:52
The address was calculated from the image posted to SNS. Investigated that a man who was arrested as attacking a woman who was going home idol activity `` determined the address reflected in the eyes of the woman's face photo posted on SNS '' I learned from interviews with related parties.
On the night of 1st last month, a woman in her 20s who returned to an apartment in Edogawa-ku, Tokyo was injured by pulling her mouth with a towel from behind and performing an indecent act of touching her body. As a result, Sato Hibiki (26) in Kita-ku, Saitama City was charged on the 8th.
Sato is a female enthusiastic fan, and in a later investigation, it is stated that he has stated that he has identified the place where he lives based on the scenery reflected in the eyes of a woman's face photo posted on the SNS. I learned from interviews.
Using Google Street's Street View feature, we found a station that resembles the scenery of the station in the eyes of a woman, and ambushed at the station to identify the apartment.
It also means that women watched the video delivered by SNS and understood the position of the woman's room from the position of the curtains and the lighting of the windows.
Prof. Ichiro Hoshishu of Tokyo Metropolitan University, who specializes in criminal policy and is familiar with SNS risks, said, “The picture quality of smartphone cameras has become very fine, and there is a new risk that privacy information will leak out in an unexpected way. The risk of “digital stalker” is increasing, and when giving an image to SNS, countermeasures are required such as avoiding photos with location information or deliberately dropping the image quality.
Expert “New Risks with Fine Image Quality”
What does it look like when you take a picture of the scene in your eyes with a smartphone camera? I experimented on campus with Professor Ichiro Hoshishu of Tokyo Metropolitan University who specializes in criminal policy and is familiar with SNS risks.
Professor Hoshi takes a picture of himself with a smartphone camera in front of a university building with a distinctive roof. When the photographer showed me the image, the shape of the roof was clearly visible behind Professor Hoshi's eyes.
Professor Hoshi said, “Because the performance of smartphone cameras has improved and the image quality has become very fine, there has been a new risk that privacy information will be leaked in an unexpected way. From information on the Internet to stalking, In other words, it is an incident where the risk of "digital stalker" has become apparent. "
In addition, as a precautionary point for crime prevention, “If there is information that can be used as a clue, it is possible to specify a location by combining functions such as Internet image search without using special skills. Needs to be well aware that there is always a risk of privacy leaks, and the software side will need new measures, such as providing an option to intentionally reduce image quality. "