Tim ClaessenData Analytics · BI · Data Strategy
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IT general controls identity reconciliation

Client
National telecommunications infrastructure provider
Industry
Telecommunications
Type
Risk & Controls
When
2020 → 2023

Recurring assurance that terminated-user access was removed effectively across critical systems

Risk Analytics Lead on the annual reconciliation of HR records against account existence and last-login information across critical systems (2020–2023). Designed the analysis to assess whether terminated-user access was removed effectively, and worked through data-quality challenges arising from inconsistent employee identifiers across Active Directory, Oracle, Chris21 and Workday.

What it used

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