There are several websites and OSINT tools available online that can be used to find public information about a particular person. The PeekYou and Lullar websites enable gathering of information about a person that is available on various social networking sites. The Wayback Machine is a website that can be used to find previous versions of webpages, enabling one to see websites in their earlier avatars. These reconnaissance tools come in handy for cyberstalking or executing social engineering attacks. EDGAR, the electronic data gathering, analysis and retrieval system, is another website providing access to company information that might otherwise be difficult to obtain. Then there is YouGetSignal, providing OSINT tools to check for phone numbers, IP addresses, whois data, geo location, tracing, and so on.