Now You TCP Me, Now You Don't: The Strengths and Weaknesses of Various Internet Scanning Services presented at BSidesTLV 2020

by Adi Ben-israel,

Summary : A wild router is connected to the web! Are Shodan and Censys the only ones who index it? Absolutely not! They are only two of the many internet scanning services that let users interact with port scanning data they routinely collect. Although their names are well-known, details about them, the data they gather, and how best to use them are more word-of-mouth than common knowledge. I will explore these and other lesser-known websites, and help security researchers understand their strengths.