Two-factor authentication (2FA)
A security feature that requires two forms of verification to access an account, typically a password plus a code sent to your phone. Significantly reduces the risk of account hacking.
In plain English
A security feature that requires two forms of verification to access an account, typically a password plus a code sent to your phone. Significantly reduces the risk of account hacking.
Why it matters
Most account takeovers can be prevented by 2FA. For children\'s gaming and social accounts, 2FA stops scammers using a stolen password to lock them out or run scams from their account.
What to do
Parents and carers
Turn on 2FA for every shared family account: email, app stores, banking, and the main streaming services.
Sources
- Two-factor authentication explained— National Cyber Security Centre
This is practical educational content to support families. For case-specific concerns about a child's safety, contact the NSPCC helpline on 0808 800 5000 or your local safeguarding team.
Last reviewed: 2026-05-17