In today's digital world, internet access has become as essential as electricity or water. When you're in a public place, be it a café, an airport, or a city park, the first thing many people do is look for a hotspot with a name. Byfly or simply "Free Wi-Fi." This name has become a household word for millions of users in Belarus and neighboring regions, denoting the ability to quickly access the internet without using up mobile data.
However, behind the simple connection lies a complex data transmission infrastructure that requires attention to detail. Understanding how exactly it works public hotspot, will help you not only save money but also protect your personal data from potential threats. In this article, we'll take a detailed look at the mechanics of these networks, authentication features, and security guidelines.
It's worth noting that the term "free" often misleads users regarding cost and security. While access may be free for the end user, providers such as Beltelecom, investing heavily in equipment support. That's why it's important to distinguish between open, password-less networks and authorized access points that require entering a phone number or viewing ads.
What's behind the name Byfly?
Trademark ByFly belongs to the largest fixed-line operator providing broadband internet services. The project was initially conceived as a way to provide wireless internet access to home subscribers, but quickly expanded beyond apartments. Today, the logo can be found on public transportation, in educational institutions, and in public squares in major cities.
Technically, the network is a collection of thousands of access points. Wi-Fi routers, united into a single infrastructure. A user can automatically switch between them while moving around the city, while remaining online. This is made possible thanks to technology roaming within the operator's network, which ensures continuity of connection.
⚠️ Note: The network name on your device may appear as "ByFly," "MinskWiFi," or have the prefix "Free." Always verify the exact access point name before connecting to avoid being targeted by a phishing clone.
The system uses special equipment that supports standards. IEEE 802.11 ac/axThis ensures high throughput even with a large number of simultaneous connections. However, speed may vary depending on the distance from the base station and channel congestion.
Authorization mechanism in public networks
The process of connecting to secure public networks is rarely completely automatic. Most often, after selecting a network from the list of available connections, the browser redirects the user to a special portal. This mechanism is called Captive Portal and serves to identify the subscriber.
There are several common ways to verify access rights:
- 📲 Enter your mobile phone number and receive an SMS code.
- 📺 View a short advertising video or banner.
- 🆔 Use of a single identifier for the operator's clients (authorization by MAC address).
- 💳 Payment for access via bank card or e-wallets (for premium plans).
It is important to understand that when you enter your personal data, you are entrusting it to the network operator. The system logging It records the login time, device, and sometimes even the resources visited. This is a legal requirement in many countries, aimed at ensuring cybersecurity.
☑️ Secure authorization
Some providers offer hybrid models, where basic access is free but limited by speed or session time. To remove the restrictions, you can upgrade to a paid plan. You can track your traffic usage and session duration in your personal account or the operator's app.
The risks of using open Wi-Fi
Using public networks carries serious security risks. Since traffic on such networks is often unencrypted at the connection level between your device and the router, attackers can intercept transmitted data. This attack method is known as Man-in-the-Middle.
| Threat type | Risk Description | Danger level |
|---|---|---|
| Packet sniffing | Interception of unencrypted data (passwords, correspondence) | High |
| Fake access points | Creating clones of legitimate networks to steal data | Critical |
| Distribution of malware | Introducing viruses through vulnerabilities in the device's operating system | Average |
| Cookie theft | Interception of session data for logging into accounts | High |
So-called "evil twins" pose a particular danger. A hacker creates an access point with a name identical to a legitimate network, for example, "ByFly_Free." An unsuspecting user connects to it, believing it to be an official service, and enters their credentials on a fake login page.
⚠️ Warning: Never conduct financial transactions or enter passwords for important accounts (banks, government services) over public Wi-Fi without using additional security measures.
Even if a network requires a password to log in, this doesn't guarantee encryption of traffic within the network. A password only limits the number of connected users, but doesn't protect data from being eavesdropped on by other network members. Therefore, using VPN tunnels is becoming a mandatory element of digital hygiene.
How does an ARP spoofing attack work?
The attacker sends false ARP responses into the network, associating their MAC address with the gateway's IP address. This causes the victim's traffic to be redirected to the attacker's device, allowing the transmitted data to be analyzed or modified.
Technical aspects of connection and configuration
For stable operation on Byfly and similar networks, it is recommended to properly configure your device's network settings. Speed issues are often caused by incorrect DNS settings or IP address conflicts. In most cases, it is sufficient to use automatic settings acquisition via DHCP.
If you are experiencing connection difficulties, try the following:
- 🔄 "Forget" the network in the Wi-Fi settings and reconnect.
- ✈️ Toggle Airplane mode on and off to reset network interfaces.
- 🌐 Manually enter DNS servers (for example, from Google
8.8.8.8or Cloudflare1.1.1.1).
Some corporate or secure network segments may require manual proxy server configuration. This information is typically provided by the network administrator. For standard user scenarios, the proxy fields should be left blank or set to "Automatic."
netsh wlan show profiles
netsh wlan delete profile name="Network_Name"
This Windows command line command allows you to delete a saved network profile, which often resolves issues with repeated authorization errors. After clearing the profile, you'll need to reconnect.
Comparison of data transmission technologies
Users often face a choice: use 4G/5G mobile internet or connect to free Wi-Fi. Each option has its advantages and disadvantages depending on the specific situation and needs.
Mobile internet provides a higher level of encryption between the device and the operator's base station, while public Wi-Fi often transmits data in cleartext. However, home or city Wi-Fi speeds can significantly exceed the capabilities of a mobile network during peak hours.
Russ