Promiscuous monitoring can be used on hotel networks which use a “hub” configuration, which passes everyone’s communication thorough the same cable. There are several ways to hack hotel LANs, but two the two main ones carry the colorful names of “promiscuous monitoring” and “ARP spoofing.” But the same technology is used for hard-wired Internet access in hotels, and that is a serious problem. That is not a major problem when the LAN is used internally, such as a business.

It was assumed, then, that everyone on the LAN could basically be trusted, so no security was necessary.Īnd that fundamental oversight has been carried forward ever since. LANs were designed to be able to share information within an organization, such as a business. The technology used for most in-house networks, called Local Area Networks (LANs), originated back in the mid-1970s at Xerox’s famous PARC research lab. To understand why, we have to look back about 35 years. But I assumed that if I plugged directly into the hotel’s network with a cable that I was safe. This actually was one of the most shocking things that I learned about Internet communications before starting Private Communications Corporation. Like many of you, I was dimly aware about the vulnerability of WiFi. My communications are safe that way, right?Ī: The answer is “no.” Your communication is just as vulnerable when using a hotel cable connection as it would be if you were using WiFi. I know that WiFi can be hacked into, so I always connect via cable. Q: The hotel that I sometimes stay in offers either WiFi or cable connection in my room.

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