WHAT THE NCSC ADVISES

Better keys for
your accounts.

A password is only one lock on the door.

Passwords get guessed, reused and stolen in data breaches. The UK's National Cyber Security Centre recommends a few simple layers: a strong separate password for email, a second step at login, and passkeys where websites offer them.

Check an account Read the short answer
A front door with two locks, a brass key turned in the upper one, in soft morning light
AI-generated image, not a photograph of a real person or place.
01 Three random words02 A second step at login03 Passkeys where offeredLayers that keep criminals out

THE SHORT ANSWER

Long passwords,
plus a second lock.

Strong passwords help, but they can still be stolen.
Official advice adds layers on top.

PASSWORDS

Three random words

The NCSC suggests combining three random words, such as applenemobiro, for a password that is long enough and strong enough but easy to remember. Never reuse your email password.

Check an account

2-STEP

A second lock on the door

Turning on 2-step verification is one of the most effective ways to protect your accounts. It keeps criminals out even if they know your password.

Set it up

PASSKEYS

No password to steal

A passkey uses a pair of secrets: your device keeps one, the website the other. The NCSC says passkeys stop phishing and are often 8 times faster than a password and code.

See the numbers

A QUICK ACCOUNT CHECK

How well is
the account locked?

Pick the way an account is protected to see what NCSC guidance says about it. The bar shows how strong the protection is.

Based on National Cyber Security Centre guidance for individuals and families. General information, not a security audit.

Account check

Choose a set-up
Same password on several sitesEasy to break in

When one site is breached, criminals try the stolen password on other accounts, a technique called credential stuffing. One password then opens them all.

A word with letters swapped for numbersNot much stronger

Criminals know tricks like swapping the letter o for a zero, so the NCSC says the password will not be significantly stronger, just harder to remember.

Three random words, used only hereStrong enough

Long and unusual is hard to crack, and a unique password means a breach elsewhere cannot unlock this account. It can still be phished or stolen.

A strong password plus 2-step verificationMuch safer

Even if your password is stolen, a criminal also needs the code, fingerprint, face scan or app approval from the second step.

A passkeyResists phishing

Each website gets its own passkey, so your device cannot be tricked into logging in to a fake site, and a hacked website exposes nothing reusable.

Sources: NCSC Top tips for staying secure online (three random words, 2-step verification, email passwords, password managers) and NCSC blog on password managers and passkeys.

TWO NUMBERS WORTH KNOWING

Phishing is the threat,
passkeys the answer.

One figure on how accounts are attacked,
one on how much easier passkeys can be.

PHISHING · CYBER SECURITY BREACHES SURVEY 2025

Breached businesses that faced phishing

85<small>%</small>

Of UK businesses reporting a cyber breach or attack in the past year, 85% experienced phishing, the most common and disruptive type. Overall, 43% of businesses reported a breach or attack.

SPEED · NCSC

Passkey login versus password and code

≈ 8<small>× faster</small>

The NCSC says logging in with a passkey is often 8 times faster than using a username, password and two-factor code, while being more secure.

The same government survey found that phishing made up 93% of cyber crimes experienced by businesses that were victims of cyber crime.

An apple, a small toy fish and a ballpoint pen laid out in a row on a light table, like three random words
AI-generated image, not a photograph of a real person or place.

FOUR STEPS TO TRY

Start with email,
then the rest.

Your email can reset all your other passwords, so the NCSC suggests protecting it first. Each step takes minutes.

  1. Give email its own passwordUse a strong password you do not use anywhere else. If you have reused it, change it as soon as possible.
  2. Turn on 2-step verificationLook in the account's security settings. It may be called 2SV, two-factor authentication or multi-factor authentication.
  3. Let a password manager rememberIt can generate a unique password for each site and will only autofill on the correct website, which helps against phishing.
  4. Say yes to passkeysWhen a site offers a passkey, try it. Keep your device updated and back up your recovery options.

WHY PASSWORDS FAIL

Strong is not
the same as safe.

The NCSC says the most common way passwords are stolen is a data breach at an organisation holding your details. Criminals then try those passwords on other accounts, which works because many people reuse them.

Phishing links can also trick people into typing a password into a fake site. A hard-to-guess password is no harder to steal, which is why a second step or a passkey matters.

A fingertip resting on the fingerprint sensor of a closed laptop on a wooden desk
AI-generated image, not a photograph of a real person or place.

QUESTIONS PEOPLE ASK

Frequently asked

What is a passkey?

A passwordless login based on public-key cryptography. Your device creates a pair of secrets for each website, keeps one and gives the other to the site, then proves it holds its secret without revealing it.

Is it safe to write my password down?

The NCSC says writing a password down is OK, provided you keep it somewhere safe. It also encourages password managers, which create and remember strong passwords for you.

Are complex passwords with symbols better?

Not necessarily. The NCSC says the old advice to fill passwords with random characters is not helpful, because memorising lots of complex passwords is almost impossible. Three random words are long enough and strong enough for most purposes.

Do I need a mobile phone for 2-step verification?

No. The NCSC says some organisations let you use a landline or other options, and the second step can also be a fingerprint, face scan or an authenticator app.

Which accounts should I protect first?

Start with email, because a criminal with access to it can reset your other passwords. Then banking, social media and online shopping accounts.

SOURCES

Where the facts come from

Each figure on this page comes from the sources below. Check them for the full detail and context.

  1. NCSC: Top tips for staying secure online, three random words
  2. NCSC: Turn on 2-step verification (2SV)
  3. NCSC: Use a strong and separate password for your email
  4. NCSC: Managing your passwords
  5. NCSC blog: Trusting the tech, using password managers and passkeys
  6. GOV.UK: Cyber security breaches survey 2025