Open every app your kid uses (Instagram, TikTok, Snapchat, YouTube, BeReal, Discord). Settings → Privacy → Account Privacy → Private. This stops random people messaging them, finding their location, or stealing photos for deepfakes.

Put a charging station in the kitchen or hallway. Phones go there at 9pm. This one thing is backed by solid research for better sleep, mental health, and grades. Make it a rule, not a punishment.

Apple: Screen Time → Content & Privacy → iTunes & App Store Purchases → Require Password. Google Family Link: set "Needs approval" for all purchases. This stops them from racking up charges on loot boxes and battle passes without you knowing.

Pick an odd word or phrase no one else knows. If someone texts claiming to be family and asking for money or help - and doesn't know the safe word - it's a scam. Tell your kid: "If you get a message from me that feels off, ask for the safe word."

Say this to your kid: "If anything happens online - if someone's weird, asks for photos, threatens you, anything - tell me. You won't get in trouble. I won't take your phone away immediately. I'll listen first. I want to know what's happening." This one conversation is your biggest protection tool.

Log into their email. Add your email as recovery (Settings → Security → Recovery email). Turn on two-factor auth with an app like Google Authenticator or Authy (free). If their account gets hacked, you can get it back.