1.2.5. (footprint)To attack a target, then the first step is to reconnaissance or collect information about the target that from the data that the object or organization publicly on the internet. This information is very useful to hackers. Tools to collect information is often used as the Whois, Domain Check or ping, traceroute. With many different methods, a hacker can synthesize many useful information for later attack step, and in the role of a Professional Suite, then we need to see the information of the Organization was announced too much on internet environment, from which launched the process timely and correctly.
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