How To Stay Safe On Public Wi-Fi

Remy

Remy Zabuh

Industry Analyst 

Last Updated: August 27, 2024

Public Wi-Fi has emerged to be common in many people’s lifestyles with its availability at such places as cafes, hotels, airports, and libraries.

Since the use of public networks has become more frequent, following tips for public Wi-Fi safety is essential as the advantages and disadvantages of their application are discernable.

Public Wi-Fi Usage and The Ease Associated With It 

Illustration of public Wi-Fi usage in cafes, hotels, and libraries, highlighting connection statistics. Tips for public Wi-Fi safety.

Public accessibility internet offers people extensive interconnectivity without charging for a connection. It is particularly popular in places like:

  • Cafes and Restaurants: Practical patterns give 38% of users a connection here. 
  • Hotels: Indeed, a further 38% use Wi-Fi in these places. 
  • Libraries: Self-generated 33% connect to public Wi-Fi for study or research. 

This makes it convenient for work, communication, and entertainment hence the high availability of the technologies.

However, these great opportunities increase the level of insecurity of a firm since they are easily accessible, highlighting the importance of adhering to WiFi security best practices.

Risks of Public Wi-Fi

Illustration of people using public Wi-Fi with highlighted risks: data interception, man-in-the-middle attacks, and rogue hotspots. Tips for public Wi-Fi safety.

A. Data Interception 

The greatest risks of public wifi is that everyone connected to the network may have their data intercepted by hackers.

While using a public wireless network, all information that is typed, including usernames, passwords, credit card numbers, and messages without end-to-end encryption, can become available to other people who are involved in packet sniffing.

This enables them to obtain confidential data that would otherwise be unavailable for such vices as identity theft, fake bank accounts, and the rest.

B. Man-in-the-Middle Attacks 

The basic Man-in-the-Middle (MitM) attacks are carried out by placing the attacker in a position between the user and the network, making the risks of public wifi even more dangerous by intercepting and altering what is being communicated.

In a scenario where someone is in a public area connected to a ‘free’ Wi-Fi, a hacker can intercept between the user and the AP and then proceed to intercept all information such as login credentials, banking details, and other personal information.

C. Rogue Hotspots 

Rogue hotspots are real and concerted attempts by attackers to create an imitation of legal access points for use by victims.

These networks are created to bait users into associating; however, after the ‘connection’ is made, the hacker is free to spy on the user and their data.

As for rogue hotspots, the risks of public wifi are heightened when these fake networks share the same name with real ones, making it difficult to differentiate between the two.

To sum up, the availability of free Wi-Fi networks presents numerous threats: intercepting of data transmission, Man-in-the-Middle attacks, and the presence of computers with fake Wi-Fi networks.

Users ought to know of these risks of public WiFi and ensure they protect their data when using public Wi-Fi.

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Best Practices For Staying Safe

Best practices for public Wi-Fi safety showing shield over a smartphone, emphasizing VPN use and security tips. Tips for public Wi-Fi safety.

A. Use a VPN 

Some of the most effective actions anybody can take include always encrypting data on public Wi-Fi using a supreme Virtual Private Network (VPN).

When using a VPN your internet connection is encrypted which makes it harder for a hacker to get a hold of your data.

This added layer of security ensures that whatever you are doing online, especially when you need to protect data on public wifi, remains unknown to other users of that network, particularly those that are insecure.

B. No entry to Sensitive Data 

When using WPS, it is recommended that one should avoid opening certain websites or, for instance, using the internet connection for banking, shopping, or entering personal information.

If possible, it is recommended to perform these activities when you are on a private and secure network to better protect data on public wifi.

This decreases the capability of the attacker to come across important details that may cause harm.

C. Verify the Network 

It is advisable to ensure that the Wi-Fi network that you are about to join belongs to a legitimate network.

In case you are unsure about the correct network name you should consult with the proprietor of the establishment such as a café or a hotel – in some cases may need a strong password for connectivity.

Extra attention should be paid to networks with the same or similar name to the one targeted by the attacker to avoid falling for fake hotspots that are created by attackers and compromise your efforts to protect data on public wifi.

D. Enable Two-Factor Authentication 

Two-factor authentication (2FA) enhances the security of your accounts in that you have to enter a second method of identification apart from your password in the form of text or an authentication application.

This has the effect of making it far more difficult to intrude into your accounts even if the cracker has gotten your password. 

E. Turn Off File sharing 

To protect data on public wifi, do not use the sharing options such as file sharing and other sharing options available in the devices when connected to a public domain Wi-Fi network.

This helps block other people from sharing the network to hack into your files or devices you have connected.

These settings you can usually locate in the network settings of your device.

F. Keep Software Updated 

This is always important in keeping your operating system, as well as your applications updated.

Updates of software, for example, contain Corrections to existing security holes that hackers may use.

Its benefits include the minimization of software vulnerabilities and potential threats because you always have the latest versions. 

If followed keenly, these best practices will help protect data on public wifi and improve the safety and security of the usage of public Wi-Fi networks, hence minimizing the occurrence of data breaches and cyber threats.

Real-life Examples And Case Studies

Illustration showing a person using public Wi-Fi, referencing a Starbucks case of fake hotspots. Tips for public Wi-Fi safety.

A. Case Study: Public Wi-Fi hack 

Probably the most famous case of public Wi-Fi being exploited happened at Starbucks, where users were exposed to a fake hotspot.

Hackers put up a bogus wireless access point that looked like a genuine Starbucks connection.

Any buyer using this bad hotspot was logged into this fake network, giving hackers a chance to capture personal details, login numbers, and other information.

This leak demonstrates some of the risks of using public Wi-Fi and highlights the importance of public WiFi security, as unencrypted connections can allow different criminals to intercept any data.

It is a useful alert about the necessity of using secure connections and being careful about the networks connected to while using public Wi-Fi.

B. User Experience 

Let us take a closer look at one such user, a businesswoman named Sarah, who often enters public Wi-Fi spaces.

On her recent journey, she reached an airport and wanted to check her balance in the bank.

Before connecting to the airport’s public Wi-Fi, she took several precautions to ensure her online safety, following essential public wifi safety tips:

  • Used a VPN: Sarah ensured that she connected to the internet via a VPN to ensure that her communication line was secure, hacking by the scammers was likely to ensue. 
  • Verified the Network: To this end, upon gaining access or realizing she was connected to the airport network, she checked with the airport staff to confirm the name of the network that she connected to was the actual AP. 
  • Avoided Sensitive Transactions: Instead of opening her bank statement she avoided opening any sensitive information and decided to wait to tread the network. 
  • Enabled Two-Factor Authentication: To enhance the security, she made sure that her bank account had 2-factor authentication which added to the security. 

By adopting all these measures, Sarah managed to stay safe on public WiFi and had a secure encounter without relinquishing control over her details, serving as an example of how other travelers can safeguard themselves while connected.

Recent News And Developments

Public Wireless Network Security over Time 

As public Wi-Fi usage continues to grow, new threats and security measures have emerged to address the evolving landscape.

To help users navigate these changes, understanding tips for public Wi-Fi safety has become increasingly important.

Increased Adoption of WPA3 

The new standard WPA3, which has been advocated for by the Wireless Broadband Alliance, is expected to provide better security than the WPA2 standards.

Therefore, it assists in protecting against the risk of having weak passwords and is also able to prevent and block brute force attacks.

When following tips for public Wi-Fi safety, ensuring your network is WPA3 compliant is a critical step.

A blending of two technologies 5G and Wi-Fi 6 

It’s predicted that the use of both 5G and Wi-Fi 6 will make public Wi-Fi more secure.

5G is faster with lower latency than the previous 4G and was released a year before Wi-Fi 6 It included features such as TWT to improve device battery life and OWE to encrypt the first connection of a Wi-Fi device on an open network. 

Advancements in AI-based Security 

Machine learning and artificial intelligence are being employed more frequently to act as filters against possible menace in areas with open WISPs.

The use of AI will mean that security measures can monitor and access network traffic and detect activities that need to be addressed and blocked. 

Legislative Changes 

Several countries have introduced or are considering legislation aimed at protecting users on public Wi-Fi networks:

European Union’s Cybersecurity Act 

The EU regulation that applies to cybersecurity is known as the Cybersecurity Act which came into effect in 2019 and it offers a procedure on how certification of ICT products, services as well as, and ICT procedures is to be done.

This includes conditions that are legal in the requirement for the provider of public Wi-Fi hotspots to have security measures and data protection, highlighting the importance of following tips for public Wi-Fi safety.

Singapore’s Cybersecurity Act 

Singapore Cybersecurity Act passed in 2018 requires owners of critical information infrastructure (CII) sectors including providers of public WI-FI to report cybersecurity threats and incidents and also have complied with the code of practice for securing the sector. 

Such trends and changes in legislation in recent years showed society’s increasing concern with public Wi-Fi security and the necessity of addressing the problem at the technological, industrial, and legal levels.

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FAQs

What is public Wi-Fi?
Wireless Internet is Wi-Fi that is accessible to the general public in such areas as cafés, airports, and libraries.
What is perilous with public connection?
Connection to Wi-Fi in public places is normally open and at times can be easily hacked and your information intercepted.
What safety measures to take when using public Wi-Fi?
By employing a VPN, one’s Internet connection will be protected from prying eyes thus the need to avoid opening innocent-looking web pages such as bank statements.
What is a VPN?
A VPN (Virtual Private Network) builds an encrypted connection that can be used for data transmission through the internet to ensure that the data passing through it cannot be intercepted by an unauthorized person.
How can I know if a Public Wi-Fi is real?
Usually, it is best to check the provided network name with staff so that one can be sure that they are connecting to the authentic Wi-Fi.

Conclusion:

Following the same trends in internet use, security, or rather privacy while using public Wi-Fi calls for concern.

It would be wise always to use a VPN, especially when in a public domain. When considering tips for public Wi-Fi safety, one should avoid using the network for very sensitive activities.

One may wonder if a network is real or fake, and software should always be updated.

There are several actions you can take to be able to use the convenience of the Wi-Fi networks of cafes and other locations and also shield yourself from scammers.

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