[해결됨] 해킹당한 계정 비활성화: 공식 해킹 계정 복구 절차가 제 경우에는 효과가 있었습니다 (정확한 단계).

Writing this up because the threads I found while panicking were all scams or dead ends. What happened: on Oct 9 I clicked a DM that said 'copyright violation, your account will be deleted in 24 hours', made to look like Meta Business Support. Fake login page. I know. Within an hour they'd changed my email and phone, and two days later the account was disabled, I assume for whatever they posted. What worked for me: 1. Secured my email first (new password, 2FA on the email account itself). 2. Typed instagram.com/hacked into the browser myself. Didn't click any link. 3. Picked 'my account was hacked' and entered my ORIGINAL email. It sent a code there. 4. It offered video selfie verification. Did it once, on my usual phone, in daylight, no cap. 5. Waited. Did not resubmit. 6. Oct 20: email from Instagram saying I could log in again. Hacker's posts were gone, their email was removed. 11 days total. What I think helped: my profile had lots of clear photos of my face, and I did the selfie on a phone I'd used with the account for years. After: authenticator app 2FA, backup codes printed, removed every logged-in device I didn't recognize. And please, don't click those 'your account will be deleted' DMs.