It was previously revealed that an 18-year-old high school male was under investigation on the suspicion that he had hacked into Eunhyuk and Sungmin's SNS to post photos of a naked woman.

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SM Entertainment revealed to a media outlet on November 21, "Currently, the suspect is undergoing investigation at the police department.  In the meantime, we will see how the investigation goes and then decide on what course of action to take." 

Previously, the Daegu Police Agency had reported through their official Twitter that they were investigating 18-year-old high school student "A."  According to the police, "A" hacked Eunhyuk's Twitter around 4 pm on November 11 and uploaded about ten nude pictures of victim "B," who was revealed to be his ex-girlfriend.  

Meanwhile, some netizens are saying the perpetrator is a trainee at SM Entertainment who goes by the surname Suk, but at this time, there is no evidence supporting their accusation.

After finishing up investigations on "A," the police plans to request an arrest warrant. Stay tuned for updates.