Because free Wi-Fi is now being offered in several hotspots such as airports, libraries, and cafes, there are some risks that people are taking by using it. Other people in the same area may be able to gain access to unencrypted messages. This could lead to identity theft and hacking. Hackers can set up free Wi-Fi networks, wait for users to sign in, and begin stealing personal information and passwords. These fake wireless networks are saved onto one's computer after joining so that the PC may automatically log in to them in the future, allowing for further hacking. To avoid this, there are a few precautions that should be taken.
The best way to protect a computer is to download anti-virus software. This will automatically scan the computer for any threats, which can help keep out any intruders who may attempt to install a virus. Another precaution to be taken is to install a firewall. This will reduce the chances of someone being able to hack into the computer. When using public Wi-Fi, it is a good idea not to put out any personal information, such as buying something online with a credit card. If someone is attempting to hack the computer and steal such information, this would just be making it easy for them. By taking such precautions, the computer will have a much lower chance of being hacked.
References:
http://www.support.com/blog/post/7-simple-precautions-you-should-take-when-using-public-wi-fi
http://www.itlist.com/security-precautions-for-wireless-internet-users/
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