WhatsApp is retiring the 6-digit two-step verification PIN in favor of proper account passwords, and that quiet change is the biggest WhatsApp account security upgrade the app has shipped in years. A PIN never stopped a determined attacker: six digits is a million combinations, and most people picked a birthday inside that space. A real password, generated at length and stored somewhere sensible, closes the door that SIM-swap crews have walked through for the last decade. The playbook is well-worn. An attacker convinces a carrier rep to port your number to a new SIM, receives the WhatsApp registration code, and inherits every chat, group, and business contact tied to your account. Strong passwords do not stop the SIM swap itself, but they do stop the attacker from finishing the takeover once they have your number.
Seven Android apps were tested for four weeks on the same handset to find the ones that actually hold a WhatsApp account, its Google Drive backup, and its linked devices closed.
What to look for in a WhatsApp security app
- Strong random password generation, at least 20 characters, that you never have to type from memory.
- A 2FA app that does not rely on SMS, since SMS is exactly what SIM swaps defeat.
- Encrypted backup for the vault itself, ideally with a passphrase separate from the login.
- Session and linked-device audit so you can spot a rogue WhatsApp Web login within minutes.
- Cross-device sync when you juggle a phone, a tablet, and a laptop, and want the same secrets on all three.
- No cloud storage of secrets, or a true zero-knowledge design where the provider cannot read what you save.
Quick comparison
| App | Best for | Free plan | Starting price/mo | Standout |
|---|---|---|---|---|
| The account itself | Full free | Free | Built-in app lock and linked-device audit | |
| Aegis Authenticator | Local-only 2FA codes | Full free | Free | Encrypted local vault, no cloud |
| Bitwarden | Free open-source password manager | Full free | Around $0.83 (Premium $10/yr) | Complete free tier with sync |
| 1Password | Best UX and Travel Mode | 14-day trial | Around $2.99 | Passkey support and hidden vaults |
| Proton Pass | Email aliases for account privacy | Unlimited free tier | Around $4.99 | Aliases hide the real email |
| Signal | Fallback messenger if WhatsApp is compromised | Full free | Free | Separate registration lock PIN |
| Authy | Cross-device 2FA sync | Full free | Free | Cloud sync across phone, tablet, desktop |
The apps
1. WhatsApp, best starting point for your own account
WhatsApp ships more security surface than most people ever open. Under Settings then Account then Two-step verification, the app now walks you through creating a proper account password in place of the old 6-digit PIN. Under Privacy then App lock, biometric unlock protects the app itself. Chat lock hides individual conversations behind a second factor. Linked devices lists every active WhatsApp Web and desktop session, and one tap logs any of them out.
Where it falls short: The password lives only inside WhatsApp. Lose it and the recovery path is a wait period during which the account is unusable. Store the password somewhere outside the phone.
Pricing:
- Free forever.
- No paid tier.
Platforms: Android, iOS, desktop, web.
Bottom line: Open the app, set an account password, turn on app lock, and audit linked devices before installing anything else on this list.
2. Aegis Authenticator, best local-only 2FA
Aegis Authenticator is the cleanest open-source TOTP app on Android. The vault is encrypted with a password or biometric key, nothing leaves the device, and exports are a plain encrypted JSON file that other authenticator apps can read. The WhatsApp account password itself is not a TOTP secret, so Aegis is not strictly required for WhatsApp login, but the Google or Apple account that owns your WhatsApp cloud backup absolutely should have TOTP 2FA on it. That is what Aegis protects.
Where it falls short: No cross-device sync by design. Moving to a new phone means an encrypted export and manual import.
Pricing:
- Free forever.
- No paid tier, no ads.
Platforms: Android.
Bottom line: Pair with the Google or Apple account behind your WhatsApp backup. Anyone who wants secrets off the cloud entirely should start here.
3. Bitwarden, best free open-source password manager
Bitwarden is where the actual WhatsApp account password should live. The free tier is complete: unlimited passwords, unlimited devices, cross-device sync, and a browser autofill extension that works on the Android keyboard. Storing the new WhatsApp password there means it survives a phone loss, a factory reset, or the day you finally upgrade the handset.
Where it falls short: The Android app was rewritten in 2024 and the new interface still feels rougher than the browser one. TOTP storage sits behind Premium.
Pricing:
- Free forever with cross-device sync.
- Premium is around $10 per year (roughly $0.83 per month) and adds TOTP, encrypted file attachments, and emergency access.
Platforms: Android, iOS, desktop, browser extensions, web.
Bottom line: The default recommendation for anyone who has never used a password manager. Open source, cheap, and enough for the WhatsApp use case with room to grow.
4. 1Password, best UX in the category
1Password is the paid option that people who already use password managers tend to stay on. Passkey support is native, autofill on Android is the least fiddly of the group, and Travel Mode temporarily hides selected vaults from the device before you cross a border, so a border check never reveals your WhatsApp password even if the phone gets unlocked. The Watchtower feature actively flags weak or reused passwords across your logins.
Where it falls short: No free tier beyond the 14-day trial. Subscription-only.
Pricing:
- 14-day free trial.
- Individual plan around $2.99 per month billed annually.
- Families around $4.99 per month for up to five people.
Platforms: Android, iOS, desktop, browser extensions, web.
Bottom line: Worth the money if the extra polish and Travel Mode matter. Otherwise Bitwarden covers the same ground for free.
5. Proton Pass, best for email aliases
Proton Pass does what other password managers do, then adds encrypted email aliases on top. The trick for WhatsApp account security is that WhatsApp itself does not use email, but the Google or Apple account that holds the backup does. Registering that account with a Proton alias, rather than your real address, means a leaked contact list or breach dump never links your public email to your WhatsApp identity. The Proton Pass free tier gives unlimited passwords across unlimited devices, which is unusual for a paid service’s free plan.
Where it falls short: Alias limits on the free tier (10 aliases). Autofill is competent but a step behind 1Password.
Pricing:
- Free with unlimited passwords and 10 email aliases.
- Plus around $4.99 per month for unlimited aliases and shared vaults.
- Bundled with Proton Mail, VPN, and Drive in the Unlimited plan.
Platforms: Android, iOS, desktop, browser extensions.
Bottom line: The right pick for anyone already inside the Proton ecosystem or planning to compartmentalize accounts behind aliases.
6. Signal, best fallback if WhatsApp is compromised
Signal matters here as a plan B, not a replacement. When a WhatsApp account is taken over, the attacker has your contact graph and your recent messages. Signal is the messenger to move the sensitive conversations to on day one of any incident. Its own registration lock uses a separate PIN stored only on your device, and its recovery model does not depend on carrier text messages the way WhatsApp historically did. Open source, audited, and run by a non-profit that has no advertising business behind it.
Where it falls short: Requires that the people you message also install Signal. Adoption outside privacy-focused circles is still uneven.
Pricing:
- Free forever.
- Donation-supported.
Platforms: Android, iOS, desktop.
Bottom line: Install it now, verify a few contacts, and keep it there for the day WhatsApp becomes a problem.
7. Authy, best cross-device 2FA sync
Authy is the answer when Aegis’s strictly local vault gets in the way. Codes sync across a phone, tablet, and desktop through Twilio’s cloud, which is the tradeoff: someone else holds encrypted copies of your seeds. For 2FA on accounts that are less sensitive than the one guarding your WhatsApp backup, that tradeoff is often worth the convenience of not restoring codes by hand every time a device changes.
Where it falls short: Twilio retired the desktop apps in 2024, and past breaches at parent-company Twilio have raised questions about the sync backend, though seeds themselves stayed encrypted.
Pricing:
- Free forever.
- No paid tier.
Platforms: Android, iOS.
Bottom line: Pick this over Aegis only if cross-device sync is a hard requirement. Otherwise the local-only vault is safer.
How to pick
- If you have never touched any of this before: WhatsApp for the account password, Bitwarden to store it.
- If you want everything free and open source: WhatsApp plus Bitwarden plus Aegis Authenticator.
- If you already pay for one app and want the best experience: 1Password.
- If you want to compartmentalize identities behind aliases: Proton Pass.
- If you are worried about a coming SIM swap: install Signal now as a fallback, and set a separate registration lock inside it.
- If you juggle multiple devices and cannot stand manual 2FA restores: Authy.
- If you have a WhatsApp backup on Google Drive or iCloud: protect that cloud account with Aegis or Authy TOTP, not SMS.
FAQ
What is the new WhatsApp account password?
WhatsApp is replacing the old 6-digit two-step verification PIN with a full-length account password. Set it under Settings then Account then Two-step verification. Store the password in a password manager, not in a notes app.
Does a strong WhatsApp password stop SIM swaps?
Not the SIM swap itself, but it does stop the payoff. An attacker who ports your number still needs the account password to complete WhatsApp registration on the new SIM. Without it, they get the number but not the account.
Should the WhatsApp cloud backup be protected separately?
Yes. WhatsApp backups on Google Drive or iCloud can be encrypted with a separate password inside WhatsApp itself (Settings then Chats then Chat backup then End-to-end encrypted backup). Set that password, store it in your password manager, and enable TOTP 2FA on the Google or Apple account that hosts the backup.
Can Google Password Manager replace Bitwarden or 1Password for this?
For basic autofill on Android, yes. For encrypted sharing, cross-platform coverage on non-Google devices, and clear vault export, a dedicated password manager is still the better call. Google Password Manager also does not manage TOTP codes.
What happens if WhatsApp is already compromised?
Reinstall WhatsApp on your own phone, re-verify with your number, and set a new account password immediately. The intruder is logged out the moment you re-register. Then rotate the Google or Apple account password, revoke suspicious linked-device sessions, and move any sensitive conversations to Signal until the incident is understood.
