People, culture & awareness
What staff know about security and how they act on it in daily work.
Formal
The level of understanding employees have of the threats facing the organisation, combined with the habits they show in response - built and kept up through planned training, campaigns and follow-up.
In plain English
Like teaching everyone in a building where the fire exits are and why the fire doors must stay shut - knowing is only half of it; doing it every day is the point.
In practice
A school gives security ten minutes at every staff meeting - this month, how to spot a fake MitID login page - and teachers now forward doubtful mails to IT instead of just deleting them.
Why it matters
Many attacks aim at people rather than machines, and NIS2 lists training among its minimum requirements, so awareness is both a defence and a legal duty.