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What is access control and why does it matter for company data?
Access control decides who can see or change which data and systems. It matters because most data incidents involve someone having more access than they needed, whether through a mistake, a stolen password or misuse. Good access control limits the damage any one account can do.
It combines authentication, which proves who someone is, with authorisation, which defines what they may do. Practical steps include individual accounts rather than shared logins, role-based permissions, regular review of who has access, and prompt removal when people leave.
Apply it to dashboards, databases, spreadsheets and cloud storage alike. Rules differ by country and sector, so check how this applies to you with a qualified adviser.
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