Instagram Account Recovery Help

My Instagram profile was taken over and, before I noticed, the attacker replaced the linked email / phone information and my username. When I try to log in now, I get redirected to the new credentials they set. I still control one of the original recovery channels (either the old email or phone number—just not both), so we have a foothold to verify ownership.

I want to start by getting the Instagram account back online under my control, then harden it so this cannot happen again. If the approach you take also uncovers quick steps to reclaim or secure my WhatsApp, that is a bonus, yet the priority is clearly Instagram first.

I’m looking for a cyber-security specialist who has hands-on experience with:

• Disputing unauthorized changes directly with Instagram support or via their “My account was hacked” workflow
• Bypassing social-engineering roadblocks the attacker may have added (new email confirmation, two-factor prompts, etc.)
• Locking the account down afterward: fresh passwords, updated 2FA, device checks, and guidance on best practices

You’ll need to walk me through any verification steps in real time, so strong communication is essential. Once access is restored, please deliver a concise post-recovery checklist so I can secure all associated devices and apps.