In today's world, wireless networks have become an integral part of the digital space, permeating our homes, offices, and public spaces. However, the convenience of wireless internet access conceals a serious risk: the radio signal propagates in all directions, and any intruder within range of the router could theoretically intercept your data. This is why the question of Which encryption type is better?, is fundamental to ensuring the security of your personal information.
When setting up a home router, many users simply leave the default settings or select the first option from the list without considering the consequences. This is a critical mistake, as outdated security algorithms can be cracked in minutes, even by a novice hacker. In this article, we'll take a detailed look at the evolution of security protocols so you can make an informed choice for maximum protection.
Choosing the right encryption standard is not just a technical formality, but a necessary precaution. Wi-Fi Protected Access (WPA) has come a long way, and understanding the differences between versions will help you protect your bank card passwords and correspondence from prying eyes.
Evolution of Wireless Security Standards
The history of Wi-Fi security began with a protocol WEP (Wired Equivalent Privacy), which emerged in the late 1990s. Developers at the time sought to create a system that would provide a level of privacy comparable to wired networks, but the implementation proved extremely vulnerable. The RC4 encryption algorithm used in WEP contained fundamental flaws that allowed the encryption key to be recovered after intercepting a certain number of data packets.
After a few years, the industry realized the failure of the first standard and it was replaced by Wi-Fi Protected Access (WPA). This was a stopgap measure implemented by the Wi-Fi Alliance until the IEEE 802.11i standard was finalized. WPA fixed many of the critical vulnerabilities of its predecessor by implementing the TKIP protocol for dynamically changing encryption keys, making life significantly more difficult for hackers.
However, the real breakthrough was the emergence of a standard WPA2, which is based on the reliable AES (Advanced Encryption Standard) algorithm. This protocol has long been considered the "gold standard" of security and remains the most widely used in the world. It provides robust data protection using 128-bit encryption, which is virtually impossible to crack using brute-force methods with a complex password.
⚠️ Attention: The WEP protocol has been considered completely obsolete and insecure since 2004. Modern operating systems (Windows, macOS, Android) often don't even offer to select this encryption type or mark a WEP-enabled network as "insecure." Using WEP is tantamount to having no password for a skilled attacker.
The latest milestone in the development of protection was the specification WPA3, introduced in 2018. This standard was developed in response to vulnerabilities found in WPA2 (such as the KRACK attack) and offers improved security mechanisms, especially for open networks and Internet of Things (IoT) devices.
A detailed analysis of the WPA2-PSK (AES) protocol
To date WPA2-PSK (Pre-Shared Key) with encryption algorithm AES remains the most common and recommended standard for most home networks. The acronym PSK means that a shared password known to all connected devices is used to access the network. This is convenient for home use, where a complex authentication server infrastructure is not required.
The key advantage of WPA2 is the use of an algorithm AES-CCMPUnlike its predecessor, TKIP, which was created for backward compatibility, AES was developed as a modern, fast, and secure encryption standard, approved by the US government to protect classified information. In everyday use, this means that even if an attacker intercepts your traffic, they'll only see a gibberish string of characters.
It's important to note that WPA2 has two main versions: Personal (for home) and Enterprise (for organizations). In Home mode Personal The encryption key is generated based on the password you enter. In corporate mode Enterprise A separate RADIUS server is used to verify the credentials of each user individually, providing a higher level of access control.
Despite its high security, WPA2 is not without its flaws. The main vulnerability lies in the handshake process when connecting a device. If an attacker intercepts your device connecting to the router, they can attempt to brute-force the password offline using powerful computing resources. This is why it's critical to use complex passwords, containing letters of different cases, numbers and special characters.
A New Level of Security: WPA3 Capabilities and Requirements
Protocol WPA3 was implemented to address the shortcomings of the previous generation and adapt protection to modern realities, where the number of connected devices numbers in the dozens. The main innovation was the technology SAE (Simultaneous Authentication of Equals), which replaces the legacy PSK key exchange method. SAE protects against brute-force attacks by making each authentication attempt independent of previous ones.
Another important improvement is the function Forward SecrecyEven if an attacker somehow manages to obtain your Wi-Fi network password in the future, they won't be able to decrypt previously intercepted traffic. In WPA2, knowledge of the password allowed decryption of the entire transmission history stored in the attacker's logs.
WPA3 also significantly improves security in public places thanks to the OWE (Opportunistic Wireless Encryption). On open networks (cafes, airports) where a password isn't required, this protocol encrypts the connection between your device and the access point, preventing other users on the same network from eavesdropping.
⚠️ Attention: WPA3 requires support from both devices: the router and the client device (smartphone, laptop). If you enable WPA3 on the router, older devices (manufactured before 2018-2019) simply won't be able to connect to the network.
The new standard is being implemented gradually. Many router manufacturers offer a hybrid mode. WPA2/WPA3 Transitional, which allows both new and old devices to connect. However, security experts recommend switching to pure WPA3 as soon as your device fleet allows it to eliminate the use of vulnerable protocols.
Comparison table of protocol characteristics
To help you organize the information and make your final decision, we'll review the key differences between the standards in a table. It details the technical details that affect the speed, compatibility, and security of your network.
| Characteristic | WEP | WPA2 (AES) | WPA3 |
|---|---|---|---|
| Year of implementation | 1997 | 2004 | 2018 |
| Encryption algorithm | RC4 | AES-CCMP | AES-GCMP |
| Burglary resistance | Critically low (minutes) | High (with a complex password) | Very high (brute force protection) |
| Security in open networks | Absent | Absent | Yes (OWE) |
| Compatibility | Any devices | Almost all devices after 2006 | Devices after 2018-2019 |
The table shows that the gap between WEP and modern standards is enormous. WPA2 provides a strong balance between compatibility and security, making it a universal choice. WPA3, on the other hand, offers maximum security but requires newer hardware.
When choosing, consider not only the standard's release date but also specific use cases. For example, if you have smart light bulbs, older CCTV cameras, or last-generation gaming consoles in your home, they may not support new protocols. In such cases, you'll have to compromise or segregate your network.
What is a KRACK attack?
The KRACK (Key Reinstallation Attack) attack is a vulnerability in the WPA2 protocol discovered in 2017. It allowed an attacker within range of the network to compromise the communication channel between the user and the router. However, a successful attack required several complex conditions, and most modern devices have already received patches to close this vulnerability.
Practical recommendations for setting up a router
When you log into your router's setup interface (usually at 192.168.0.1 or 192.168.1.1), the security section can be called differently: Wireless Security, WLAN Settings or Wi-Fi PasswordYour task is to find the "Security Mode" or "Encryption Type" drop-down list and select the optimal option.
If your hardware supports WPA3-Personal, feel free to choose it. This will provide the best protection. If you see the option WPA2/WPA3 Mixed, this is also a good solution for the transition period. Just avoid any options containing the word "WEP" or "WPA" (without the 2 or 3), as they are vulnerable.
Don't forget about the length and complexity of your password. Even the most advanced encryption protocol will be useless if you choose a password like "12345678" or your date of birth. It's recommended to use a passphrase—a long, multi-word phrase that's easy for you to remember but difficult for a computer to guess.
☑️ Wi-Fi Security Checklist
Also worth paying attention to is the function WPS (Wi-Fi Protected Setup). It's designed to quickly connect devices with the push of a button, but it often contains vulnerabilities that allow someone to recover the PIN code and gain access to the network. It is recommended to disable WPS in your router settings if you don't use this feature all the time.
Compatibility issues with older devices
One of the main challenges in transitioning to new encryption standards is the proliferation of legacy technology. Many users still have Windows 7 laptops, older smartphones running Android 4-5, or specialized IoT devices (smart plugs, printers) that are physically unable to handle protocols higher than WPA2, and sometimes only WPA/TKIP.
If you enable "WPA3 Only" mode, these devices will simply stop seeing the network or will return an error when attempting to connect. In this situation, don't sacrifice security for the sake of one device. The best solution is to create guest network (Guest Network) on the router.
Set up a guest network using a more compatible protocol (such as WPA2) and connect older devices to it. Keep the main network running on WPA3 for modern smartphones and computers storing sensitive data. This will ensure segmentation and prevent a vulnerable device from becoming an entry point for an attack on the entire perimeter.
⚠️ Attention: Router settings interfaces from different manufacturers (Keenetic, TP-Link, ASUS, MikroTik) may differ. Menu item names may vary, but the basics remain the same: look for the "Wireless Security" section. Always consult the official manual for your router model, as firmware updates can change the layout of features.
In some cases, older network card drivers on your computer may not support WPA2/AES, even if the hardware supports it. Check the website of your network card or laptop manufacturer and update the drivers to the latest version—this often resolves issues connecting to secure networks.
Why can't some devices see a WPA3 network?
The WPA3 protocol requires support for certain cryptographic functions at the hardware level. If the device's network module was released before the standard's widespread adoption (approximately before 2018), it will be physically unable to pass the SAE authentication procedure. In this case, the only solution is to update the device's firmware (if supported by the manufacturer) or use the router's hybrid mode.
FAQ: Frequently Asked Questions
Is it possible to hack a WPA2 encrypted network?
In theory, yes, but in practice, it's extremely difficult and time-consuming. Hacking is possible either through the WPS vulnerability (if enabled) or by brute-forcing the password. If you have a complex password (more than 12 characters, mixed case and symbol) and WPS is disabled, hacking such a network becomes economically unfeasible for an attacker.
Does encryption type affect internet speed?
Yes, it does, but only slightly for modern hardware. The AES algorithm used in WPA2 and WPA3 is hardware-optimized in most processors and network cards, so speed losses are minimal (less than 5%). However, using the outdated TKIP mode (in WPA) can artificially limit connection speed to 54 Mbps.
What should I do if my phone stops connecting after changing encryption?
Your device has likely forgotten your old network security settings. Go to your phone's Wi-Fi settings, find your network, tap "Forget Network," and try connecting again with the password. This will force your device to retry the handshake with the new settings.
Do I need to change my Wi-Fi password when I change the encryption type?
Technically, no, the router will accept the old password. However, if you're switching from WEP or WPA to WPA2/WPA3, this is the ideal time to change the password, as old keys may have been compromised or written down in guest notebooks. Changing the password is a best practice for any security configuration change.
Is WPA2/WPA3 Mixed Mode safe to use?
This is more secure than pure WPA2, but less secure than pure WPA3. In mixed mode, devices that support WPA3 will use it, while others will fall back to WPA2. This creates a potential, albeit small, attack surface through a less secure protocol, but for home use, it's an acceptable tradeoff.