Cybersecurity consultants usually have experience with computer security or information security standards. The type of expertise required is highly specialized and is currently not very common. The services provided by a cybersecurity consultant can make a real difference in the overall security of an organization and prevent or at least reduce future invasions by hackers or fraudsters in the real world.
Cybersecurity is only part of the broader field of information security, which also includes physical assets and threats as well as the human factor. However, in the context of increasing threats to critical national infrastructure (such as power generation) of some countries, the "cyber" part of the term is increasingly important.
It is true that most organizations will not be at risk from incursions by state-sponsored agents. However, they may still be the target of an opportunistic amateur hacker, and it is here that cyber-security consultants can play a part. You can get in touch with them via https://cstor.com/.
Consultants can review the organization's existing IT security level by identifying areas where there are high-risk vulnerabilities (e.g. web pages where usernames and passwords are submitted unencrypted). Many vulnerabilities stem from the old software that has not been updated to a hotfix.
In this case, simply updating the software will fix the situation. In other cases, the software may be up to date with the latest security fixes, but you may need to reconfigure it to change settings. Vulnerability scans and intrusion tests performed by cybersecurity consultants will uncover these and other situations, allowing companies to fix vulnerabilities before hackers find them.