So they cannot be the only security controls protecting your network. Port scanners are also used by cybercriminals to garnish vulnerability intelligence about a potential victim before launching a cyberattack.īecause many of these tools are freely accessible, you must assume that cybercriminals are using them to study your open ports. Such network reconnaissance should be completed regularly to identify and remediate vulnerabilities before they're discovered by cyberattackers. It involves identifying open ports and also sending data packets to select ports on a host to identify any vulnerabilities in received data. Port scanning is the process of analyzing the security of all ports in a network. In this post, we discuss the 5 best free open port scanners you can start using today to check for open ports in your ecosystem.Ĭlick here to skip ahead to the list of free open port scanners. Unfortunately, many organizations are currently exposing their sensitive resources through such malicious connections, heightening the risk of ransomware attacks, supply chain attacks, and data breaches.įortunately, there are free tools available that can detect all of the open ports in your ecosystem so that you can then assess the level of criticality of each exposure. The open ports in your hardware could be critical points of vulnerability if the services exposed to them are misconfigured or unpatched.

Advanced port ip scanner