Job security is thing of past and no company is secure enough.
With rise jn automation, people have high cahnces of losing tgeir jobs added with complex changing landscape.

Hnece, job security is impossible for all levels of management.

The only way is to upskill yourself with relevant Industrial skills and which are in demand, and thorough work commitment which can increas eyour job security.
One must have clean credit profile and no fraud based cases to avoid any malpractice which can evade ones chances of getting a job.

You can also join PSUs where job security is much better than private sector organization.