How to know if someone is spying on your WhatsApp account

Someone does not necessarily need your WhatsApp password to see your messages. From linked devices and stolen verification codes to sophisticated spyware, here is how to spot the warning signs and secure your account.

You are chatting on WhatsApp when something feels wrong.

Perhaps a message has been marked as read when you are certain you never opened it. Maybe a device you do not recognise appears in your WhatsApp account. Or you receive a WhatsApp verification code you never requested.

For millions of people, that can trigger an immediate fear: Is someone spying on me?

The answer is sometimes yes.

But there is an important distinction between someone secretly accessing your WhatsApp account, someone having access to your unlocked phone, and an ordinary technical problem that only looks suspicious.

WhatsApp says personal messages and calls remain protected by default end-to-end encryption. But that protection does not mean an account or device can never be compromised. Attackers can try to trick users into handing over verification codes, persuade them to link another device, or in rare cases use sophisticated spyware to target a device.

In 2026, WhatsApp has continued to strengthen its defences. The company says it has disrupted spyware-related targeting attempts and introduced additional protections for people facing sophisticated cyber attacks.

So how can you tell whether your WhatsApp account has been compromised?

The first place to look: Linked Devices

One of the simplest checks is also one of the most important.

Open WhatsApp and look for Linked Devices.

This shows the computers, tablets or other devices currently linked to your WhatsApp account.

If you see a device, browser or location you do not recognise, take it seriously.

It does not automatically prove that somebody is spying on you. A family member may have used your phone to

link a computer, or you may have forgotten about a device you connected months ago.

But if you genuinely do not recognise a linked device, remove it.

The principle is simple: if you did not authorise the connection, disconnect it.

This matters because scammers have increasingly tried to persuade people to link their WhatsApp accounts to an attacker's device.

Meta has warned that scammers may pretend to be running competitions or other promotions and persuade users to enter their phone number and a device-linking code. They may also trick people into scanning a QR code, which

can link the scammer's device to the victim's WhatsApp account.

That means you should never scan an unfamiliar WhatsApp QR code simply because someone tells you it is necessary to receive a prize, vote in a competition or access a service.

A verification code you did not request is a warning sign

Imagine receiving an SMS containing a WhatsApp registration code when you have not attempted to log into WhatsApp.

Do not share it.

The code is intended to prove that you control the phone number associated with the account.

A scammer may contact you shortly afterwards and claim the code was sent to you by mistake.

It wasn't.

They may be trying to convince you to hand over the code they need to register your WhatsApp account on another device.

This is one reason why unsolicited requests for WhatsApp codes should be treated as suspicious.

Your verification code is private.

Not even someone claiming to be a WhatsApp employee should need you to read it to them.

What if your messages are being read?

This is where things become more complicated.

Seeing a message marked as read when you do not remember opening it can be unsettling.

But it is not proof by itself that somebody has hacked your account.

There are several innocent explanations: you may have opened the conversation earlier, another notification or

device may have marked it as read, or someone with physical access to your phone may have opened WhatsApp.

Look for a pattern rather than relying on one unexplained incident.

If messages are repeatedly being read, sent or deleted without your involvement and particularly if this happens

alongside an unfamiliar linked device or unexpected security notifications that is much more concerning.

Messages you did not send

Another strong warning sign is activity you cannot explain.

Check your chats.

Have messages been sent from your account that you did not write?

Have conversations been deleted?

Have people responded to messages you never remember sending?

If so, someone may have gained access to your account or someone may have had physical access to your unlocked

phone.

Change your security settings immediately and review linked devices.

And tell contacts who may have received suspicious messages from your account.

This is particularly important because a compromised account can be used to impersonate you and ask friends or

relatives for money.

In Ghana, where WhatsApp is deeply integrated into everyday communication and business, such an

impersonation can quickly become a financial problem.

Your WhatsApp account suddenly logs you out

If WhatsApp unexpectedly logs you out or tells you that your phone number is being registered on another device,

pay attention.

It could indicate that somebody has attempted to take control of the account.

Do not panic but act quickly.

Re-register the account using your phone number and the verification process.

Then check your linked devices and enable two-step verification if it is not already active.

The important lesson is not to ignore unexpected account security messages.

Two-step verification is one of your best defences

WhatsApp provides two-step verification as an additional layer of account protection.

It requires a PIN when the account is being registered again.

That means an attacker who manages to obtain your SMS verification code may still face another barrier.

Choose a PIN that other people cannot easily guess.

And do not share it.

If WhatsApp asks you to provide an email address for two-step verification, make sure the email account itself is

protected with a strong password and additional security measures.

Your security is only as strong as the accounts that can be used to recover it.

Beware of the biggest mistake: giving the spy access yourself

Some attacks do not involve sophisticated hacking.

They involve social engineering.

A scammer may call or message you pretending to be:

• a friend;

• a mobile network representative;

• a bank employee;

• a WhatsApp support agent;

• a competition organiser;

• a colleague;

• or someone who claims to have sent you a code by accident.

The objective is often the same: persuade you to reveal information that allows them to access your account.

They may create a sense of urgency.

“Send me the code now.”

“Your account will be blocked.”

“You have won a prize.”

“Your SIM will be deactivated.”

“Click this link to verify your account.”

That pressure is deliberate.

Stop. Verify independently. Do not act simply because someone sounds convincing.

What about spyware?

This is where the story becomes more serious.

Spyware is malicious software designed to monitor or collect information from a device.

Sophisticated spyware can potentially go far beyond WhatsApp itself.

Meta has warned that commercial spyware firms have targeted journalists, government officials, activists and

others, and says attackers can seek ways into devices through browsers, operating systems and other applications.

In June 2026, WhatsApp said it had disrupted NSO-linked social-engineering attempts involving malicious links

that directed targets to websites outside WhatsApp.

This is important because it changes the way people should think about “WhatsApp spying”.

Sometimes the problem is not that somebody has broken WhatsApp's encryption.

The attacker may instead be trying to compromise the device on which WhatsApp runs.

That is a much broader security problem.

Can a strange battery drain prove someone is spying?

No.

This is one of the biggest myths online.

People often list a rapidly draining battery, an overheating phone or unusually high data usage as definite signs

that somebody is spying on WhatsApp.

They are not.

Those symptoms can have many ordinary causes.

A battery may drain because of:

• video streaming;

• social media;

• poor network coverage;

• GPS;

• background apps;

• an ageing battery;

• software problems;

• high screen brightness;

• or heat.

Similarly, increased data use does not automatically mean spyware.

These symptoms become more significant when they appear alongside other evidence of compromise.

Think of them as clues, not proof.

What about WhatsApp Web?

WhatsApp Web and linked devices are legitimate features.

They allow you to use WhatsApp across computers and other devices.

So seeing a linked computer is not automatically evidence of spying.

The important question is whether you recognise it.

If you do, there is probably nothing to worry about.

If you don't, remove it.

Then strengthen your account.

Could someone read your chats without linking a device?

Potentially—but it depends on how they obtained access.

Someone who physically has access to your unlocked phone may be able to read WhatsApp conversations without

hacking the account.

Someone who compromises the device itself may also potentially gain access to information on it.

That is why securing the phone is just as important as securing WhatsApp.

Use a strong screen lock.

Enable fingerprint or face authentication where appropriate.

Do not leave your phone unlocked where other people can access it.

And keep the phone's operating system and WhatsApp application updated.

WhatsApp itself recommends keeping apps and devices up to date, particularly for people who may face

sophisticated attacks.

What if someone knows too much about your conversations?

This can be particularly frightening.

Someone may mention details from a private conversation and you immediately assume your WhatsApp has been hacked.

But there are several possibilities.

They may have:

• seen the message on someone else's phone;

• been shown a screenshot;

• heard the information from another participant;

• accessed a notification;

• or actually gained access to your account or device.

Do not jump straight to the most dramatic explanation.

Instead, check your account.

Look at linked devices.

Review recent activity.

Ask whether anyone else has physical access to your phone.

Then strengthen your security.

WhatsApp's new protection for high-risk users

For most people, ordinary security precautions will provide substantial protection.

But WhatsApp has recognised that some people face more sophisticated attacks.

In January 2026, it announced Strict Account Settings, a lockdown-style protection designed particularly for

people who may be targets of rare and sophisticated cyber attacks, including journalists and public figures.

The feature restricts certain activities, including automatically blocking attachments and media from unknown

senders and silencing calls from people users do not know.

If you are a journalist, activist, public official or another person who may be deliberately targeted, stronger

security measures may therefore be appropriate.

What to do if you think someone is spying on you

Do not confront the suspected person first if doing so could put you at risk.

Start by securing the account.

1. Check Linked Devices.

Remove anything you do not recognise.

2. Enable two-step verification.

Create a strong PIN and keep it private.

3. Never share WhatsApp verification codes.

Treat unsolicited requests for them as a potential scam.

4. Update WhatsApp and your phone.

Security updates can address vulnerabilities.

5. Secure your phone itself.

Use a strong screen lock and biometric protection where appropriate.

6. Review suspicious apps.

Remove applications you do not recognise or no longer need.

7. Be careful with links.

Especially links sent by strangers or people pretending to represent a trusted organisation.

8. Tell your contacts if your account has been compromised.

This can prevent scammers from successfully impersonating you.

9. If you suspect sophisticated spyware, seek expert help.

Do not rely on random “spyware detector” apps promising to solve everything.

10. If there is a serious threat, preserve evidence.

Screenshots, suspicious messages, login notifications and other information may be useful to a cybersecurity professional or relevant authorities.

The most important thing to remember

There is no single notification that says: “Someone is spying on your WhatsApp.”

And there is no reliable magic trick that can detect every form of surveillance.

The strongest warning signs are usually a combination of unexplained activity: an unfamiliar linked device, an unexpected verification request, messages you did not send, unexplained account registration activity or other evidence that somebody has gained access.

At the same time, not every strange behaviour means you have been hacked.

A hot phone is not proof.

A dying battery is not proof.

A delayed notification is not proof.

A slow WhatsApp connection is not proof.

The best defence is to check the evidence rather than panic.

WhatsApp says personal messages and calls remain protected by default end-to-end encryption, while continuing to add protections against account compromise and sophisticated attacks.

But security is not something an app can do entirely for you.

The person most capable of stopping a WhatsApp scammer may be the person holding the phone.

Do not give away your verification code.

Do not scan unfamiliar QR codes.

Do not click suspicious links.

Check your linked devices.

Turn on two-step verification.

Keep your phone updated.

And if something does not look right, investigate it before assuming it is harmless.

Because when your WhatsApp contains your conversations, business dealings, family messages and financial

information, protecting the account is no longer just about privacy.

It is about protecting your digital life.