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Nobody does this, but turning off your cell phone's Wi-Fi when you leave the house is very important.

Published 30/01/2025 às 08:16
Wi-Fi
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Leaving Wi-Fi on outside your home can pose risks to your security and privacy. Here are the reasons why you should turn it off!

We use our cell phones for everything: sending messages, watching videos, making payments and accessing important information. However, this convenience can also pose a risk to our privacy and security. Wi-Fi may be one of the loopholes that deserves your attention.

If you've ever noticed that your phone was using mobile data when you thought you were connected to your home Wi-Fi, this is just one of the problems that conexão automatic can cause.

Most people leave Wi-Fi on all the time to avoid unnecessary data consumption. However, this also means that your device is constantly searching for networks, which can compromise your battery and expose your data to cyber threats.

Whenever you connect to a Wi-Fi network, especially a public one, you open a door for cybercriminals to access your data. Therefore, it is essential to understand the risks and take measures to ensure your safety.

The risks of automatic Wi-Fi connections

Leaving Wi-Fi on all the time can be more dangerous than it seems. Every time your phone connects to a network, it shares information that can be intercepted by hackers.

Public networks, such as those in cafes, shopping malls and airports, are common targets for cyberattacks, allowing criminals to access personal data, banking credentials and private conversations.

Another risk is location tracking. Even when offline, your device can continue to search for known networks, allowing companies and third parties to monitor your movements.

Because of this, automatically connecting to Wi-Fi not only puts your data at risk, but also compromises your privacy.

How to protect your cell phone

To minimize risks, some simple measures can be adopted:

  • Disable automatic connection: Set your phone to ask for permission before connecting to any network.
  • Delete old networks: Wi-Fi networks stored on your device can be exploited by hackers.
  • Keep Wi-Fi turned off when not in use: This stops your phone from continuing to scan for unknown networks.
  • Regularly update your operating system and applications: Updates fix vulnerabilities and improve the security of your device.

Android users should be extra careful, as even with Wi-Fi turned off, the phone can continue to scan for networks through features like Bluetooth and location services. Reviewing your device's privacy settings is essential to avoid unnecessary risks.

The Importance of a VPN When Using Public Networks

A VPN (Virtual Private Network) is an essential tool for anyone who needs to access public Wi-Fi networks. This technology creates a secure channel between your device and the internet, encrypting your data and preventing third parties from intercepting it.

Using a VPN means that even if a hacker is monitoring an open network, they won’t be able to access your information. Some smartphones, like the latest Google Pixel models, now offer built-in VPN options, making it easier to stay safe on public connections.

If you need to connect to an unknown network, using a VPN is an indispensable measure to protect your data and privacy.

Privacy Settings

Operating systems like iOS and Android have a variety of privacy settings, but many of them are not enabled by default. To increase your security, it’s worth reviewing and customizing these options:

  • Configure automatic connection only to trusted networks: Limit access to networks such as those at home or work.
  • Review location permissions: Many apps track your location unnecessarily. Turn this option off when it is not essential.
  • Use two-factor authentication (2FA): Protect your online accounts with an extra layer of security.
  • Enable system security features: Many manufacturers offer additional protection options, such as application blocking and alerts for suspicious connections.

Personally, I set my smartphone to only connect to secure and trusted networks. This way, I reduce the risks without losing the convenience of wireless internet.

In today’s hyper-connected world, protecting your smartphone is more important than ever. Small changes, like disabling automatic Wi-Fi connection and using a VPN when accessing public networks, can make a big difference in keeping your data safe.

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Cristina Fontoura
Cristina Fontoura
31/01/2025 21:18

Guys, if I do this when I return I won't have internet! 😔

Emanuel Alves Ferreira
Emanuel Alves Ferreira
01/02/2025 21:56

interesting. very.

Emanuel Alves Ferreira
Emanuel Alves Ferreira
01/02/2025 21:57

I always do this when I go out on the street.

Fabio Lucas Carvalho

Journalist specializing in a wide range of topics, such as cars, technology, politics, shipbuilding, geopolitics, renewable energy and economics. I have been working since 2015 with prominent publications in major news portals. My degree in Information Technology Management from Faculdade de Petrolina (Facape) adds a unique technical perspective to my analyses and reports. With over 10 thousand articles published in renowned media outlets, I always seek to bring detailed information and relevant insights to the reader. For story suggestions or any questions, please contact me by email at flclucas@hotmail.com.

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