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For students and staff

Your codeis your key.

Most account takeovers start with a reused password or a shared code. Lock both doors.

  • 2-minute lesson
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  1. 1Why it matters

    Account takeover: how it happens and how to stop it

    Your email is the master key. Whoever controls it can reset your social, school, banking and application accounts. Attackers get in through a few predictable routes:

    • Password reuse. One site leaks, and the same password is tried everywhere.
    • Fake sign-in pages reached from links in DMs, texts and emails.
    • Code-forwarding scams like Jaylen's Sunday text. The FTC is clear: never give a verification code to anyone, and anyone who asks is a scammer. The code on your phone is for your account.
    • SIM swaps. A scammer convinces a mobile carrier to move your phone number to their SIM card. Your texts, including sign-in codes, go to them. Federal Communications Commission (FCC) rules require carriers to use secure ways to verify customers before moving a number and to notify customers about SIM change and port-out requests.

    Your lock-down routine:

    • Step 1 — Unique passphrases. At least 16 characters, such as 4 to 7 random words (CISA's guidance), different for every account. Start with email.
    • Step 2 — Stronger MFA. An authenticator app or a passkey is stronger than text codes, which a SIM swap can intercept.
    • Step 3 — Recovery settings. Make sure the recovery email and phone are yours and current. Save backup codes somewhere safe offline.
    • Step 4 — Carrier PIN. Ask your family's carrier about an account PIN or lock for SIM changes and number transfers, and keep alerts on.
    • Step 5 — Review sign-ins. Check the "devices" or "where you're signed in" list and remove anything you don't recognize.

    Warning signs: codes you didn't request, "new sign-in" alerts, password-reset emails you didn't start, or your phone suddenly showing no service. Act immediately: change the passphrase from the real app, sign out all sessions, contact the carrier if service dropped and tell a trusted adult. For a school account, contact your district help desk.

  2. 2Do this

    • No reused passwords

      One leaked password opens every account that shares it. Use a different passphrase for each.

    • Strongest second step

      A passkey or authenticator app beats text codes, which can be lost in a SIM swap.

    • Never forward a code

      Anyone who asks for your verification code is trying to get into your account.

    Warning signs
    • Codes you didn't request
    • No service suddenly
    • Password-reset emails
    • Friends get odd DMs

    Account hijacked? Use the official recovery page, change the passphrase, sign out other sessions, turn on two-step sign-in and tell a trusted adult.

  3. 3Quick check

    Scenario: A classmate texts that they "accidentally" used your number for their verification code and asks you to forward it, offering $20. A code arrives. What is happening?
    Which second step is hardest for a SIM swapper to steal?

    Choose an answer for each question.

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