Vulnerability assessment focuses on identifying and cataloging security weaknesses using automated scanning tools and manual review. It provides a broad overview of vulnerabilities with risk ratings. Penetration testing goes further by attempting to exploit vulnerabilities to demonstrate real-world impact, showing how an attacker could chain vulnerabilities together to compromise systems. Both are important for comprehensive security validation.

We recommend quarterly vulnerability assessments for external-facing infrastructure and monthly scans for critical systems. Internal assessments should be conducted at least bi-annually. Additionally, assessments should be performed after major infrastructure changes, new application deployments, or significant updates. Many compliance frameworks require regular vulnerability assessments at specific intervals.

Common findings include unpatched software and operating systems, misconfigurations in security settings, weak or default credentials, unnecessary open ports and services, outdated SSL/TLS implementations, missing security headers, SQL injection and XSS vulnerabilities, and insecure file permissions. The specific vulnerabilities vary based on your technology stack and security maturity.

We carefully configure scans to minimize impact on production systems. Non-intrusive scans typically have negligible performance impact. For more intensive scans, we schedule them during maintenance windows or low-traffic periods. We always establish scan policies with your team to ensure business continuity and can throttle scan intensity if needed.

We use a risk-based approach considering CVSS scores, exploitability in your environment, asset criticality, exposure level (internal vs. external), available exploits in the wild, and business impact. This creates a prioritized remediation roadmap focusing on the highest risks first. We also identify quick wins - easy fixes that significantly improve security posture.