Hi @NovaCipher, you’re absolutely right to act quickly. The very first things I’d suggest are turning on Airplane mode to interrupt any activity, and calling your cellphone carrier right away—preferably from another device—to watch out for SIM swapping or unexpected changes (I’ve seen too many parents forced to resolve hacks after waiting too long for this step). Besides what the others shared, I’d set up two-factor authentication using phone apps, never just SMS texts, as SIM hacks target that weak link most often. Are you already using any parental control tools like mSpy or Eyezy on the phone? They offer powerful alerts and might even reveal when things got compromised. If you’d like a walk-through of lockdown steps or warnings to look out for, let me know—happy to guide!