Are We Prioritizing The Wrong Security Metrics?

Organizations have long relied on traditional security metrics like SLAs, issue closure rates, and compliance checklists to gauge their risk posture. However, these metrics may create a false sense of security rather than reflecting true risk reduction.

Read the full article on Dark Reading

You Should Know:

Key Security Metrics That Matter

Mean Time to Detect (MTTD) – Measures how quickly threats are identified.

– Linux Command: Use `journalctl -u ` to check logs for anomalies.
– Windows Command: `Get-WinEvent -LogName Security | Where-Object {$_.ID -eq 4625}` (Failed login attempts).

Mean Time to Respond (MTTR) – Tracks how fast threats are mitigated.

– Linux Command: Automate responses with `fail2ban` (e.g., fail2ban-client status sshd).
– Windows Command: Use PowerShell to isolate infected hosts:

Invoke-Command -ComputerName <TargetPC> -ScriptBlock {Stop-Process -Name "malware.exe"}

Dwell Time – The duration an attacker remains undetected.

– Linux Command: Check active connections with netstat -tulnp | grep ESTABLISHED.
– Windows Command: netstat -ano | findstr LISTENING.

Patch Compliance Rate – Ensures systems are up-to-date.

– Linux Command: `apt list –upgradable` (Debian) or `yum check-update` (RHEL).
– Windows Command: wmic qfe list brief /format:table.

5. Phishing Click Rates – Measures user susceptibility.

Simulate phishing: Use GoPhish (./gophish).

Automating Security Metrics Collection

Linux: Use `auditd` for real-time monitoring:

auditctl -w /etc/passwd -p wa -k passwd_changes

Windows: Deploy SIEM tools (Splunk, ELK) via PowerShell:
```
Install-Module -Name SplunkTA -Force 
```

What Undercode Say:

Traditional metrics like compliance checklists are insufficient. Focus on actionable, threat-centric data such as MTTD, MTTR, and exploit attempts. Implement automated logging (auditd, Sysmon) and enforce strict patch policies (WSUS, yum-cron). Combine behavioral analytics (Zeek, Wazuh) with threat intelligence feeds (MISP, AlienVault OTX) for proactive defense.

Expected Output:

Linux: `grep “Failed password” /var/log/auth.log` (SSH brute-force attempts).
Windows: `wevtutil qe Security /q:”[System[(EventID=4688)]]”` (New process creation).
URLs: Dark Reading, MISP Threat Intel.