Case Study: a Fortune 100 telecommunications provider achieves access visibility and cleanup at scale with Oleria

Fortune 100 Telecommunications Provider remediates 34,176 disabled users with Oleria

The customer, a Fortune 100 telecommunications provider, faced significant security challenges due to the immense scale and complexity of its cloud environment. With over 250,000 active accounts, visibility was a major issue; nested user groups obscured true access paths, and tens of thousands of disabled users retained access to sensitive systems. The company needed to govern non-human identities, control external sharing, and sift through hundreds of millions of monthly activity events to find real threats.

Oleria addressed these challenges by implementing its access security platform, which built a central Access Knowledge Graph from the provider's Entra ID, SharePoint Online, and Salesforce environments. The solution provided clear visibility into nested group relationships and correlated permissions with live usage data. As a result, Oleria helped the provider remediate access for over 34,000 disabled users and automate the cleanup of 118,990 empty groups, closing critical offboarding gaps and reducing directory sprawl.