Hazards relating to Cyber Security of Wi-Fi
Introduction
WiFi changed the way we connect to the internet forever by making it possible to connect to the internet from virtually anywhere. Unfortunately, the convenience of WiFi also creates serious cyber security risks. Cybercriminals take advantage of open WiFi networks to attack, retrieve information, and hack devices. In this ultimate guide, we explore the different cyber security risks involved in using WiFi and how you can best protect yourself:
FAQs for Cyber Security Risks of Using WiFi
Public WiFi Networks Without Security
Public WiFi, present in coffee shops, airports, hotels, and shopping malls, is often without proper encryption or security protocols. These unencrypted networks may be abused by cybercriminals to carry out different attacks, such as:
Man-in-the-Middle (MiTM) Attacks: Hackers access the communication between a user and a website, and steal the login credentials, sensitive information.
Evil Twin Attacks: Cybercriminals set up fake WiFi networks that resemble legitimate WiFi networks to deceive users into connecting to the fake network and exposing their data.
Packet Sniffing: Attackers use specialized tools to capture unencrypted data packets, allowing them access to your passwords, emails, and any other sensitive information.
Poor Encryption and Old Security Protocols
While WEP (wired equivalent privacy) and WPA (wifi protected access) protocols are no longer safe to use, many WiFi networks still use them. Common threats include:
Brute Force Attacks: Hackers try to compound weak passwords using automatic tools to gain access to open WiFi networks.
KRACK Attack (Key Reinstallation Attack) : which allows attackers to decrypt and forge network traffic on vulnerable WPA2 implementations.
Vulnerabilities in WPA3: While WPA3 brings stronger security to the table, vulnerabilities have still been discovered that can be exploited.
Intrusion and unauthorized devices
Weak passwords and poorly configured networks might permit unauthorized users access. Risks include:
Piggybacking: Unauthorized users access your WiFi network, using up bandwidth and exposing those with authorization to attacks.
Rogue Access Points: Attackers create rogue WiFi access points inside an organization’s network, making security blindspots.
Exploits of Guest Network Isolation: Poorly isolated guest networks can be exploited by attackers for pivoting into the main networks.
All About Malware Distribution Via WiFi
Malicious WiFi networks can be leveraged to spread malware on connected devices. Common methods include:
Drive by Downloads: Malicious websites automatically download malware to the devices connected to insecure networks.
Botnet Infections Devices that get compromised can then become part of a botnet, used to perform distributed denial-of-service (DDoS) attacks.
WiFi-Based Ransomware Attacks: By exploiting WiFi vulnerabilities, hackers can inject a piece of ransomware that encrypts user data and then demand a ransom to pay for the keys to decrypt.
Data Interception and Identity Theft
At the same time, unprotected WiFi networks expose data to interception by cybercriminals, resulting in identity theft and financial fraud. Risks include:
Credential Theft: Hackers steal logins to get into banking, social media and company accounts.
Session Hijacking: Attackers hijack active web sessions, impersonating the user.
Phishing Over WiFi – A fake login portal misleads users to fill their credentials.
IoT Device Vulnerabilities
With the increasing number of Internet of Things (IoT) devices being connected to WiFi networks, there are more potential security threats that come along with this:
Weak Default Passwords: Most IoT devices are shipped with default weak credentials which can easily be exploited.
Unpatched Firmware: Old iot devices do not have security updates, making them vulnerable to attacks
Device Hijacking: Cybercriminals hijack IoT devices for malicious purposes, including spying and launching attacks.
Methods for Using WiFi Securely
Protect Your WiFi at Home and Work
Use WPA3 encryption if possible for min security.
When it comes to WiFi, use a unique and strong password.
This is also why you should change the default router credentials as soon as possible.
Try to Disable WPS (WiFi Protected Setup) to avoid brute force attacks.
Unblock interference protection and departure suppression.
Keep up with firmware and security patch updates.
Stay Safe on Public WiFi
Stay away from unsecured/open networks
Before continuing, some common security advice:
Turn off auto-connect options for WiFi networks.
Switch off file sharing and Bluetooth if you are not using them.
Browse on a secure website using HTTP 💻
Protect IoT Devices
Replace default passwords and usernames on all devices
Install the most up to date firmware with security patches.
Роздільна мережа для IoT-пристроїв, щоб ізолювати їх від конфіденційних даних.
If not needed, disable remote access functionality.
Implement Network Monitoring
The intrusion detection systems (IDS) are such systems that you may use.
Use MAC address filtering to restrict the devices that can connect.
Regularly check connected devices to identify unauthorized access.
Enable Multi-Factor Authentication (MFA)
Turn on MFA — multi-factor authentication — for any account you access online, to add an extra layer of security.
Avoid SMS-based two-factor authentication by using authentication apps.
Teach Users About WiFi Security
Provide training to employees and family members about best practices for using secure WiFi.
Raise awareness of phishing attempts and suspicious WiFi networks.
Conclusion
In an age where connectivity is crucial for accessing the resources made available by the digital world, WiFi has become a huge contributor to this, and with this convenience comes a great security risk, especially in cyberspace. By understanding these threats and incorporating strong security measures, individuals and organizations can better secure their data, devices, and networks. However, by adhering to recommended practices like using VPNs, enabling secure encryption, and securing IoT devices, users can reduce the threat posed by WiFi and have a safer online experience.
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