Dangers of public Wi-Fi: advice for travellers
Free Wi-Fi at cafes, airports, restaurants and city streets is used by almost everyone who’s traveling – but how many people take an extra step to make sure their browsing is not only convenient, but also safe?
Last year, NordVPN (Virtual Private Network) released safety tips for public Wi-Fi, but the number of public Wi-Fi scams only seems to be increasing, showing that people still don’t treat their online security seriously.
According to privatewifi.com study, 79 per cent of respondents still don’t use a VPN when they go on public Wi-Fi. According to NordVPN’s recent survey, almost 35 per cent of respondents still didn’t know such obvious rules that, for example, it was dangerous to shop online on a public network.
Most common ways that a hacker can take advantage of an unprotected Wi-Fi spot:
1. Honeypot Wi-Fi
The most common threat is still a hacker positioning himself as a Wi-Fi hotspot – the so-called honeypot Wi-Fi. When that happens, a Wi-Fi user will be sending their information to a hacker instead to a legitimate Wi-Fi spot – and that could include credit card information, private emails, and any other sensitive information.
This technique is very easy for hackers, as Wi-Fi spots rarely require authentication to establish a connection.
2. Wireless sniffers
Hackers can be using sniffers, a software designed to intercept and decode data when it is transmitted over a network.
Wireless sniffers are specifically created for capturing data on wireless networks, but are normally used by IT specialists to monitor the health of a network and diagnose problems. When a sniffer falls into a hacker’s hands, it can be easily used to monitor and decode another person’s private data.
3. Shoulder surfing
When an Internet user finds themselves in a crowded coffee shop or an airport, there might be data thieves lurking around, who will watch over a shoulder to memorize passwords or credit card information that one enters into their device.
Just as it’s important to be careful when entering a PIN number into an ATM machine, it’s important to make sure no one is looking over a shoulder when going online at a public Wi-Fi spot.
How can an Internet user protect themselves when they go online at a public hotspot?
Actually, it’s really simple – just a few easy rules need to be followed – and they will be safe on any public network.
1. Use a VPN
The best and most effective way for any traveler to protect their data is to use a VPN (Virtual Private Network). A VPN service encrypts all the traffic flow between the Internet and a device thus hiding user’s IP address.
Recently, VPNs have become a mainstream tool and quite a few have been remodeled to be very user-friendly. For example, with NordVPN users only have to turn to ON button, and they will be connected.
The app (for Windows, Android, Mac or iOS) will then choose the fastest server to connect to. It’s also important to be aware of free VPNs that typically rely on third party advertisers to cover the costs.
In addition to protecting one’s online activities, a VPN will also help access banned sites in a different country (such as Facebook in Vietnam or Wikipedia in Turkey).
2. Use a firewall
It’s important to make sure firewall is turned on before going online, especially on a public Wi-Fi spot.
3. Disallow automatic wireless network connection
Make sure automatic wireless connection are not turned on, and Wi-Fi is turned off when it’s not being used – this will prevent hackers from automatically connecting to one’s device.
4. Sharing settings should NOT be Public
To prevent anyone from finding and accessing one’s device, it’s important to make sure System’s Settings are not set to Public sharing.
5. Be vigilant
It’s always important to know who’s around to avoid shoulder surfing or any other suspicious activities.
Email the Travel Weekly team at traveldesk@travelweekly.com.au
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VPNs are essential, especially if you’re traveling. ExpressVPN is prob the best overall service but there are other good options too, like Nord and PIA.
I just wanted to point out that not every VPN is trust worthy so, people should be careful when choosing a VPN. Some credible names include Purevpn, Expressvpn, and Ivacy AFAIK