* Packet sniffing is a technique used to capture and analyze network traffic, which can include intercepting passwords while they are in transit.
* When data packets are transmitted over a network, a packet sniffer can capture these packets, and if they are not encrypted, it can read sensitive information like passwords.
* The other options:
* Buffer overflow is a type of attack that exploits a program's memory handling.
* Phishing is a social engineering attack to deceive users into providing sensitive information.
* Black hat refers to a hacker with malicious intent, not a specific technique.
* Therefore, packet sniffing is the correct technique for obtaining passwords in transit.
References:
* "Network Security Essentials: Applications and Standards" by William Stallings, which explains packet sniffing and network security threats.
* "Computer Security: Principles and Practice" by William Stallings and Lawrie Brown, which covers network attack techniques including packet sniffing.