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“Ghost-Sender" is the result of a widespread misconfiguration, according to researchers, and evidence indicates it's being actively abused in the wild.
In this type of misconfiguration, cyberattackers could use exposed secrets to authenticate directly via Microsoft’s OAuth 2.0 endpoints and infiltrate Azure cloud environments.
Upgrading the organization's Windows 10 systems to Windows 11 could potentially introduce vulnerabilities into the environment through misconfigured hardware.
Azure admins are urged to disable shared key access and implement Azure Active Directory authentication.
Cloud storage databases, often deployed as "rogue servers" without the blessing of the IT department, continue to put companies and their sensitive data at risk.
Many enterprises continue to leave cloud storage buckets exposed despite widely available documentation on how to properly secure them.
The data exposure was the result of an "unintentional misconfiguration on an endpoint" and not a security vulnerability, Microsoft said.