Cyber Security practitioners need to acquire relevant certification or credential in demonstrating domain expertise or competency.
Learning is life time process. Getting certified is not to fulfil employment but a personal acievement.
Even if certified, upkeeping the field knowledge and practices is essential or else falling behind. No matter attending academic course or professional training, these are just opportunities to let you learn how to learn. The context involved is just a catalyst in doing so. Alternatively, helping peers or mentoring will also enable knowledge advancement.
Therefore, never be complacent.