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Someone Linked a Device to Your WhatsApp? Do This Immediately (2025)

Someone Linked a Device to Your WhatsApp? Do This Immediately (2025)

If your WhatsApp is acting strange — messages sending on their own, chats marked as read, or you see an unknown linked device — don’t ignore it.

This is one of the most dangerous WhatsApp security issues in 2025, and thousands of users are losing access without even receiving an OTP.

In this guide, I’ll show you exactly how to check, how to remove the hacker, and how to fully secure your WhatsApp — step by step.

No technical skills required.

⚠️ Signs Someone Has Linked a Device to Your WhatsApp

Many users don’t realize their WhatsApp is compromised because there’s no warning notification.

Watch out for these red flags:

  • Messages marked as read that you didn’t open

  • Replies sent without you typing anything

  • Friends saying “you already replied” (but you didn’t)

  • WhatsApp Web showing activity you don’t recognize

  • Battery draining faster than usual

If you notice even one of these, check immediately.

🔍 How to Check Linked Devices on WhatsApp (IMPORTANT)

This takes less than 30 seconds.

On Android & iPhone:

  1. Open WhatsApp

  2. Tap the three dots (⋮) or Settings

  3. Select Linked Devices

If you see:

  • A device you don’t recognize

  • A browser/location you never used

⚠️ Your account is at risk.

🚨 Do This First: Remove All Unknown Devices

Follow these steps in this exact order:

  1. Open Linked Devices

  2. Tap on the unknown device

  3. Select Log out

  4. If unsure → Log out from ALL devices

This instantly cuts access.

Do NOT delay this step.

🔐 Enable This One Setting (Most People Skip It)

This is what hackers hope you never turn on.

Turn on Two-Step Verification:

  1. Go to Settings → Account

  2. Tap Two-Step Verification

  3. Enable it

  4. Set a 6-digit PIN (don’t reuse old passwords)

  5. Add a recovery email (very important)

Once enabled, no one can link a device without this PIN.

🧹 Extra Safety Steps (Highly Recommended)

Do these to fully secure your phone:

  • Update WhatsApp to the latest version

  • Remove any screen-sharing or remote apps

  • Run a basic security scan on your phone

  • Never click “verify” or “support” links from messages

  • Never share QR codes with anyone

Most hijacks happen because of fake support messages.

❌ What NOT to Do (Common Mistakes)

Avoid these mistakes — they make things worse:

  • ❌ Don’t reinstall WhatsApp before logging out devices

  • ❌ Don’t ignore strange behavior

  • ❌ Don’t trust messages claiming “WhatsApp support”

  • ❌ Don’t delay enabling Two-Step Verification

❓ Can WhatsApp Be Hacked Without OTP?

Yes.
In 2025, attackers are using linked-device access instead of OTP.

That’s why checking Linked Devices is now critical for every user.

🛡️ Is WhatsApp Safe After This?

Yes — if you secure it properly.

WhatsApp itself is safe, but user negligence isn’t.

Once you:

  • Remove unknown devices

  • Enable Two-Step Verification

  • Stay alert

Your account becomes extremely difficult to access.

Final Advice (Please Read)

Make it a habit to:

  • Check Linked Devices once a week

  • Keep Two-Step Verification ON

  • Never rush into clicking security messages

Most people lose accounts because they think
“nothing will happen to me.”

If this guide helped you, bookmark it or share it with someone who uses WhatsApp daily.
It could save their account.


 

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