At first glance, Censys appears similar to Shodan. However, Shodan focuses on Internet-connected devices and systems, such as servers, routers, webcams, and IoT devices. Censys, on the other hand, focuses on Internet-connected hosts, websites, certificates, and other Internet assets. Some of its use cases include enumerating domains in use, auditing open ports and services, and discovering rogue assets within a network. You might want to check Censys Search Use Cases.
VirusTotal is an online website that provides a virus-scanning service for files using multiple antivirus engines. It allows users to upload files or provide URLs to scan them against numerous antivirus engines and website scanners in a single operation. They can even input file hashes to check the results of previously uploaded files.
Have I Been Pwned (HIBP) does one thing; it tells you if an email address has appeared in a leaked data breach. Finding one’s email within leaked data indicates leaked private information and, more importantly, passwords. Many users use the same password across multiple platforms, if one platform is breached, their password on other platforms is also exposed. Indeed, passwords are usually stored in encrypted format; however, many passwords are not that complex and can be recovered using a variety of attacks.
