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[TECHNOLOGY] · 2 sources

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Cybersecurity risks emerge from employee offboarding and network misconfigurations

Cybersecurity experts are highlighting critical vulnerabilities in organizational infrastructure, ranging from human-centric offboarding risks to complex network misconfigurations.

Regarding employee offboarding, data indicates that nearly 90% of former employees maintain access to sensitive corporate systems and data after their departure as of 2025. Key risks include retained access to email, cloud platforms, and CRM systems, as well as unrotated shared credentials, active privileged accounts, and forgotten API keys. These oversights can lead to significant data exfiltration and prolonged exposure.

In the realm of network security, the complexity of modern hybrid environments—spanning IT, cloud, IoT, and operational technology (OT)—creates visibility gaps. Misconfigurations in these interconnected systems can create attack paths that threaten not only data security but also physical safety and system uptime. Addressing these vulnerabilities requires continuous modeling of network connectivity to identify and remediate exposure across diverse vendor ecosystems.

Entities

CISA · NSA · Proton · RedSeal