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IT security in an environment of 2,500+ users

Several years in IT security at a national central bank: over 2,500 users across 34 sites, with strict demands on availability and confidentiality.

Defence in depthArchitecture
Policies, audit and evidenceISO/IEC 27001Identity and accessLeast privilege, MFANetworkSegmentation, firewallEndpoints and serversHardening, patchingDataBackup, classification2.500+user accounts34sitesDocumentedevery change
Several years in IT security at a national central bank: over 2,500 users across 34 sites, with strict demands on availability and confidentiality.

Starting point

At a central bank, mistakes are expensive and audits are strict. Infrastructure spread across 34 sites, and every change had to be documented and justified.

Approach

  1. Manage accessUser accounts and permissions for more than 2,500 users following least privilege.
  2. Security in operationsMonitoring, hardening and responding to security events across all sites.
  3. Audit and evidenceWorking to documented procedures and preparing for audits in line with ISO/IEC 27001.

Outcome

  • Experience delivering security under strict rules and at scale
  • An eye for risk that now benefits small and mid-sized businesses

Technical details

The habits from that environment – document, justify, verify – still shape every project, even when it’s only ten workstations.

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