![]() ![]() Experts can easily change them to suit their purposes, but the above ports are the ones often targeted thanks to all the documentation about the vulnerabilities of the ports and corresponding services. While there are hundreds of ports out there (1-65535), they have their own specific uses and even tied to specific tech companies. Thanks to SQL Server’s popularity, the target base is huge and hacking these ports can cause maximum profit or damage. NETBIOS over TCP/IP / provides access to shared resources Unsecured 135s allow hackers to issue remote commands to vulnerable computers. Post Office Protocol version 3 (POP3) / To disrupt or intercept email services. ![]() Despite being more secure than port 80, companies secured by 443 is where the money is. Hypertext Transport Protocol (HTTP) and HTTP over TLS/SSL (HTTPS). The modern internet has largely moved away from the insecure HTTP but there are still companies that use this. To disrupt the services or operations of specific organizations. Simple Mail Transfer Protocol (SMTP) / To disrupt or intercept email services.ĭomain Name System (DNS). To establish a connection to the target machine. To remotely gain access to the target machine’s files. Prospective hackers can look up those vulnerabilities to bypass security while System Administrators need to keep an eye out on these ports and make sure they’re secure. In the home setting, these ports are not protected by office firewalls unless the user is logged into their office’s VPN. Without firewalls, these ports become subject to their own respective vulnerabilities which many other hackers take advantage of. These and the ports above are often protected by firewalls. Hypertext Transport Protocol (HTTP) and HTTP over TLS/SSL (HTTPS)įrom a security standpoint, below are the ports that every hacker should be aware of. Simple Network Management Protocol (SNMP) Internet Message Access Protocol (IMAP) Management of Digital Mail Simple Mail Transfer Protocol (SMTP) E-mail Routing Telnet – Remote login service, unencrypted text messages Port Numberįile Transfer Protocol (FTP) Data Transferįile Transfer Protocol (FTP) Command Control ![]() Below are some common port numbers and their uses. These ports have assigned numbers dedicated to specific services and are used by hackers to try and break into them, using the vulnerabilities of the hardware and software that use these ports. Ports are essential for computers to communicate with other computers or for applications to communicate with their corresponding services over the internet. ![]()
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