A newly discovered flaw in telnet servers exposes vulnerabilities in many legacy systems and Internet of Things (IoT) devices still using this outdated protocol for remote access. Despite telnet being largely replaced by more secure options, it remains in use across hundreds of thousands of devices, making them susceptible to potential attacks. Researchers have pointed out that this forgotten attack surface could allow unauthorized access to sensitive systems, putting data and operations at risk. Organizations relying on these systems need to assess their use of telnet and consider transitioning to more secure protocols to mitigate these risks. This situation underscores the importance of keeping security practices updated, even for older technologies that may still be in operation.