verify is my application is using Telnet Protocol

I have an application source code written nearly 25 years ago, that predominantly use TCP socket programming. now, as part of Cyber Security process, i have to verify if my code is using Telnet protocol or not. How do i know if that TCP socket programming is using Telnet protocol or not ?

1 answer

  • answered 2018-05-16 05:23 Hajo Kirchhoff

    Make a code review. This is especially important and really the only way if this is "a part of Cyber Security process" as you write. The code could include a back door that offers secret access to hackers etc...