Overview
Attackers can intercept data transmitted over unencrypted networks like public Wi-Fi. Eavesdropping on unsecured networks occurs when attackers intercept communications between a mobile device and a server, particularly over unencrypted or poorly secured connections such as public Wi-Fi. Common techniques include packet sniffing and man-in-the-middle (MitM) attacks, which allow attackers to capture sensitive information like login credentials, personal details, or financial data. Without proper encryption, data transmitted over these networks can be easily intercepted and exposed.
Risk factors
Eavesdropping on unsecured networks can arise from:
- Using open or unsecured public Wi-Fi networks increases the risk of eavesdropping.
- Transmitting sensitive data over plaintext HTTP instead of encrypted HTTPS.
- Accessing sensitive services on public Wi-Fi without the protection of a Virtual Private Network (VPN).
- Using outdated or weak encryption standards, like WEP or old versions of SSL, that are vulnerable to attack.
Consequences
If eavesdropping on unsecured networks is successful, the following could happen:
- Data interception: Attackers can capture sensitive data such as usernames, passwords, credit card numbers, or personal information.
- Session hijacking: Attackers may steal session cookies or tokens, enabling them to take control of user sessions.
- Phishing attacks: Attackers can inject malicious content or redirect users to phishing sites during communication interception.
- Identity theft: Stolen personal data may be used to impersonate users or gain unauthorized access to other services.
Solutions and best practices
To mitigate the risks associated with eavesdropping on unsecured networks, organizations should implement the following security measures:
- Use HTTPS for all communications: Ensure all communication between the app and server is encrypted using HTTPS with TLS.
- VPN usage: Encourage users to utilize VPN services when connecting to public Wi-Fi to safeguard data transmission.
- Strong encryption: Adopt modern encryption protocols, such as TLS 1.2 or TLS 1.3, to secure all data in transit.
- App shielding: Leverage app shielding to detect and prevent unauthorized access, tampering, or MitM attempts on unsecured networks.