What is Dwell Time in Cybersecurity?

Dwell time in cybersecurity is the period between an attacker’s initial compromise of an environment and the moment defenders detect that intrusion. In simple terms, it measures how long a threat actor remains hidden inside systems before the security team finds them. Google Cloud’s Mandiant reported a global median dwell time of 10 days in 2023, down from 16 days in 2022.

Why dwell time matters

A long dwell time gives attackers more room to escalate privileges, move laterally, steal data, deploy malware, or prepare ransomware. Therefore, reducing dwell time directly improves containment speed and limits business impact.

However, dwell time is not the same as breach lifecycle. IBM’s 2024 report says organizations took an average of 194 days to identify a breach and 64 days to contain it, for a total lifecycle of 258 days. Dwell time focuses on the hidden attacker presence before detection.

Dwell time vs related metrics

Common causes of high dwell time

• Fragmented security tools can create visibility gaps across the environment.
• Poor log monitoring often delays threat detection and investigation.
• Delayed patching leaves known vulnerabilities exposed for longer periods.
• Limited threat-hunting capabilities make hidden attacker activity harder to identify.
• Unmanaged or shadow IT endpoints can provide persistent entry points for attackers.
• Weak credential controls increase the risk of lateral movement and privilege escalation.
• Hybrid and remote work environments can complicate centralized security monitoring.
• Faster incident correlation and endpoint visibility help reduce attacker persistence.

How organizations reduce dwell time

Security teams reduce dwell time by improving endpoint visibility, centralizing telemetry, hunting for abnormal behavior, and responding quickly to indicators of compromise. In addition, strong device compliance, patch management, least privilege access, and continuous monitoring reduce attacker persistence.

For UEM-led security teams, Hexnode can support this effort by helping enforce endpoint baselines, manage device compliance, and maintain visibility across managed endpoints. This becomes especially relevant when compromised or non-compliant devices create footholds for attackers.