You don't need to know any language to get a career in cyber-security.
You don't even need to know how to program.
Cyber-security, for the most part, is not some super cool hollywood hacker field. It's a dull, tedious, paper-pushing field where you sit around all day pushing security audits, checking boxes and pushing other people to take care of securing these new controls or patching these boxes, or changing this configuration.
It would be great if you have knowledge in programming language. For more learning you can https://www.cetpainfotech.com/technology/CCNP-security