World Cup travelers: beware of unencrypted Brazilian Wi-Fi nets

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The last thing World Cup travelers are probably thinking about is secure internet access in the tournament's host city, São Paulo, Brazil. But they should be.

New Kaspersky Lab research suggests that up to 26 percent of São Paulo's Wi-Fi networks are unencrypted. Plus, a majority of the networks offer free access, which could lure in unsuspecting tourists in search of an internet connection.

Kaspersky's researchers gathered information on the Wi-Fi networks by logging more than 60 miles driving around the city and assessing 5,000 wireless access points in places such as parks, malls and airports.

To avoid data breaches, the researchers recommend that everyone connect through a VPN connection. However, if connecting to a potentially unsafe network is absolutely necessary, visitors should browse through Tor and use a DNS traffic encryption software on their devices.

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