In Brief (TL;DR)
Discover how to make WhatsApp Web secure: a practical guide to managing linked devices, logging out remotely, and protecting your conversations.
Discover how to check active sessions, log out remotely, and use features like screen lock to protect your conversations from prying eyes.
Activate security features and manage linked devices to protect your privacy from unauthorized access.
The devil is in the details. 👇 Keep reading to discover the critical steps and practical tips to avoid mistakes.
WhatsApp Web has transformed the way we communicate, bringing the convenience of instant messaging from the phone to the computer. This extension of the mobile account has become a daily tool for millions of people in Italy and Europe, combining the speed of digital culture with the typically Mediterranean need to always stay connected. However, this convenience introduces new privacy challenges. Leaving a session open on a shared PC or failing to properly manage linked devices can expose our conversations to prying eyes. Understanding the risks and adopting the right countermeasures is fundamental to using WhatsApp Web in total safety, protecting our personal space in an increasingly interconnected world.
Digital security is not just a technical issue, but a cultural habit. In a context like Italy, where social and professional lives often intertwine, protecting your chats means defending personal and professional relationships. This article offers a complete guide to managing linked devices and strengthening privacy on WhatsApp Web, combining tradition and innovation. We will explore built-in security features, such as active session control and screen lock, providing practical advice for everyone, regardless of their level of technological expertise.

Why Security on WhatsApp Web is Crucial
Using WhatsApp Web on public or shared computers represents one of the biggest risks to privacy. If you forget to close the session, anyone using that computer could have full access to your conversations. The multi-device feature, while extremely convenient, amplifies this risk: once connected, a device can access WhatsApp regardless of whether the phone is connected to the Internet. This means a “ghost” session, left open weeks prior, can remain a gateway to your chats. It is therefore essential not only to log out after every use on non-personal PCs but also to periodically check the list of authorized devices. Ignoring this simple practice is equivalent to leaving your front door open.
Beyond physical access, there are subtler digital threats. Phishing, for example, exploits deceptive links or messages to steal credentials. Scams have been reported where cybercriminals, after gaining access to an account, send malicious links to the victim’s contacts. Using unofficial versions of WhatsApp Web can also expose you to malware and data theft, as these applications do not offer the same security guarantees as the official version. The protection of conversations, guaranteed by end-to-end encryption on the official app, is thus nullified. Awareness of these risks is the first step toward effective defense.
Managing Linked Devices: Your Control Panel

The first bulwark in defense of your privacy is the conscious management of linked devices. WhatsApp offers a dedicated section, easily accessible from the app on your smartphone, which functions as a true control center. To view all active sessions, simply go to Settings > Linked devices. Here you will find a list of all computers, tablets, or other phones that have access to your account, with details on their last activity. This feature is crucial because it allows you to always have a clear view of who can access your chats.
Checking this section regularly is a fundamental habit. If you notice a device you don’t recognize or a session you haven’t used in a while, you can and must disconnect it immediately. The operation is simple: just tap the suspicious device and select “Log out”. This action will instantly revoke access from that session, protecting your account. Remember that thanks to multi-device mode, a web session remains active even if the phone is off, making this check even more important for your security. Adopting this verification routine transforms a potential weak point into a solid fortress for your privacy.
Essential Tools to Armor Your Privacy

To further increase security, WhatsApp Web offers specific tools that every user should know and use. One of the most effective is Screen Lock, which requires entering a password to view chats every time the WhatsApp Web tab is opened. To activate it, go to Settings > Privacy > Screen lock and set a personal password. This feature is an excellent deterrent against prying eyes, especially if you share the computer with other people. If you forget the password, you will need to log in again by scanning the QR code.
Another fundamental layer of protection, valid for the entire WhatsApp account, is Two-Step Verification. This feature associates a six-digit PIN with your phone number, which will be requested periodically and every time you register the account on a new device. Activating it is simple: from WhatsApp on your phone, go to Settings > Account > Two-step verification. This security system is a powerful barrier against account theft, especially in cases of SIM swapping, because even if a malicious actor obtained the SMS verification code, they could not access your account without knowing your personal PIN.
Security Notifications: An Ally Not to Be Underestimated
Security notifications are another valuable tool offered by WhatsApp. By enabling them, you will receive an alert on your phone every time a new device connects to your account. This allows you to act promptly in case of unauthorized access, immediately disconnecting the unknown device. Furthermore, WhatsApp is constantly improving the interface of these notifications to make them clearer and easier for all users to understand. Ignoring these notifications or disabling them means giving up an early warning system that can make the difference in protecting your personal data.
Most Common Scams and How to Recognize Them
The growing popularity of WhatsApp has made it fertile ground for increasingly sophisticated scams. One of the most recent and dangerous is the so-called “WhatsApp Image Scam”, where scammers send an apparently harmless image that hides malware. Once the image is opened or downloaded, the malicious software installs itself on the device, allowing criminals to steal sensitive data, including banking credentials. Another widespread scam exploits links sent by known contacts whose accounts have been previously compromised. These messages leverage trust to induce the victim to click on links that lead to phishing sites or install malware.
Recognizing warning signs is fundamental to avoiding traps. Always distrust messages that promise easy money, such as those offering money in exchange for “likes” on videos, only to then ask for an investment with the promise of multiplying it. Pay attention to details: an official WhatsApp account will always have the blue verification checkmark next to the name and will not show a phone number. In general, the golden rule for good privacy and security on WhatsApp is to never click on suspicious links and never download files from unknown senders or dubious sources. If you receive a strange message from a friend, contact them via another channel to verify that they actually sent it.
- Check linked devices
Access WhatsApp Settings from your smartphone and select ‘Linked devices’. Here you can view the complete list of all computers and tablets that have access to your chats.
- Disconnect suspicious sessions
Analyze the list of active sessions. If you notice an unknown device or one not used for a long time, tap it and select ‘Log out’ to immediately revoke access to your account.
- Activate Screen Lock on Web
On WhatsApp Web, go to Settings > Privacy > Screen lock. Set a personal password that will be requested every time you open the tab, protecting conversations on shared PCs.
- Enable Two-Step Verification
From the mobile app, go to Settings > Account > Two-step verification. Create a six-digit PIN essential to prevent account theft and activation on unauthorized devices.
- Recognize and avoid scams
Ignore messages promising easy money and do not click on links or download files from unknown senders. Always verify the sender’s identity before opening suspicious attachments.
Conclusions

Security on WhatsApp Web is not a destination, but a continuous process that combines the technology offered by the platform and user awareness. Living digitalization securely, in the Italian and European cultural context, means balancing the need for connection with the protection of our private sphere. Tools like checking linked devices, screen lock, and two-step verification are powerful defenses, but their effectiveness depends on our ability to use them correctly. Periodically checking active sessions, disconnecting unrecognized devices, and maintaining high vigilance towards suspicious messages are habits that transform the user from a potential victim into an active guardian of their own privacy. In a world where tradition and innovation meet, protecting our digital conversations is a modern way of guarding what matters most: our relationships and our peace of mind.
Frequently Asked Questions

To check linked devices, open WhatsApp on your phone, go to ‘Settings’ (on iPhone) or click the three dots in the top right and then ‘Linked devices’ (on Android). There you will find the list of all active sessions, with details on the device type and time of last activity. It is a good habit to check this section regularly.
If you notice an unknown device, act immediately. From the ‘Linked devices’ section on your phone, select the suspicious device and tap the ‘Log out’ option. This will immediately revoke access to your account from that session. For greater security, enable push notifications, which will alert you to new unauthorized connections.
Yes, it is a concrete risk if someone gains physical access to your unlocked smartphone, even for just a few seconds. In that time frame, they could scan the QR code and link your account to another computer. However, WhatsApp alerts you with a notification on your phone when a Web session is active and allows you to check all connected devices, giving you a way to discover and stop unauthorized access.
A very useful feature is ‘Screen Lock’. You can activate it from WhatsApp Web Settings, in the ‘Privacy’ section. Once enabled, you will need to set a password that will be requested to view chats after a period of inactivity (for example, 1, 15, or 60 minutes) or every time you open the browser. This prevents anyone using your computer from accessing your conversations.
If you forget the password you set for screen lock, you cannot recover it. The only solution is to disconnect the session from your computer and log in again. To do this, you will need to open the ‘Linked devices’ section on your phone, select the active WhatsApp Web session, and log it out. Subsequently, you can reconnect the computer by scanning the QR code again.

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