If an insecure protocol must be used, organizations themselves need to encrypt any data that will be sent using that protocol. Secure protocols ensure that any information transmitted will automatically be encrypted. Secure protocols such as HTTPS, Secure File Transfer Protocol (SFTP), and Secure Shell (SSH) should be used in place of their insecure alternatives when possible. Commonly used insecure protocols include basic HTTP authentication, File Transfer Protocol (FTP), and Telnet. First off, organizations (and individual users) should refrain from using insecure protocols. There are several measures that organizations should take to mitigate wireless packet sniffer attacks. It is more common for attackers to use promiscuous mode in sniffing attacks because promiscuous mode allows attackers to intercept the full range of data flowing through an access point. This makes wireless sniffing attacks in promiscuous mode easier to detect. Since a wireless sniffer in promiscuous mode also sniffs outgoing data, the sniffer itself actually transmits data across the network. In promiscuous mode, a sniffer is able to read all data flowing into and out of a wireless access point. A wireless sniffing attack in monitor mode can be very difficult to detect because of this. In monitor mode, a wireless sniffer is able to collect and read incoming data without sending any data of its own. There are two modes of wireless sniffing: monitor mode and promiscuous mode. Spoofing attacks often target business’ networks and can be used to steal sensitive information or run man-in-the-middle attacks against network hosts. Spoofing is a type of attack where a malicious party uses information obtained by a wireless sniffer to impersonate another machine on the network. Wireless sniffer tools are also commonly used in “spoofing” attacks. Wireless network sniffing attacks usually target unsecure networks, such as free WiFi in public places (coffee shops, hotels, airports, etc). Logins (usernames and passwords) are very common targets for attackers using wireless sniffer tools. Hackers can use wireless sniffer software to steal data, spy on network activity, and gather information to use in attacking the network. While wireless packet sniffers are valuable tools for maintaining wireless networks, their capabilities make them popular tools for malicious actors as well.
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