Hyomin gave a warning to a hacker.
On October 19, Hyomin expressed frustration via Instagram. She stated, "Stop hacking. Yesterday at 14:25, someone who doesn't know my email changed my password and hacked my account. I can find out the phone network if you hack with your cell phone. I will leave it to the phone network to prevent the second hacking."
Hyomin also shared a screenshot detailing the time, date, IP address, and location of the hacking.