Wi-Fi Security——Automatic Connection to Wi-Fi

Wi-Fi Security——Automatic Connection to Wi-Fi

November 24, 2018 | Adeline Zhang

Case AnalysisCase Analysis

When finding a bogus Wi-Fi hotspot with the same name as a legitimate one, smartphones also try to connect to it with the stored password. This gives hackers access to legitimate Wi-Fi networks.

Security Tips/Takeaways

  • Disable WLAN on smartphones and laptops when Wi-Fi is not used, in case the devices automatically connect to malicious Wi-Fi networks.
  • Watch out for the names of Wi-Fi hotspots to which smartphones and laptops are connected.

Wi-Fi Security——Wi-Fi Master Key

Case AnalysisCase Analysis

Wi-Fi Master Key and similar applications, once installed on smartphones, will automatically upload the password of your Wi-Fi by default. These passwords are not given in plaintext, but will be typed automatically for Wi-Fi access. However, a vulnerability was exposed to allow a certain application to read Wi-Fi passwords that are detected. This makes it possible for hackers to connect laptops to Wi-Fi for malicious purposes with more powerful attack tools.

Security Tips/Takeaways

  • Do not use Wi-Fi Master Key and other similar applications.
  • If those applications are required, disable the automatic password upload function.

Wi-Fi Security——Sum-up

Security Tips/Takeaways

  • Use public Wi-Fi with caution.
  • Do not use passwordless Wi-Fi. Remember to make your payment in a secure way through 4G networks.
  • Never set up routes without authorization. Don’t forget security settings.
  • Turn off Wi-Fi when not used. Never try Wi-Fi Master Key.