Authenticator apps like Google Authenticator or Authy generate six-digit codes that change every 30 seconds.
These are far more secure than SMS codes because they can’t be intercepted through phone number hijacking — a technique hackers increasingly use.
Download an authenticator app and link it to your key accounts.
Many platforms now offer this as a free, built-in feature.
Once you start using it, you won’t go back.
Ask your child: "Why do you think websites ask for a second code? What would happen if someone got that code?"
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