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Tenable Cybersecurity Guide

Actionable exposure management across your entire attack surface

This guide covers building a continuous exposure management program and using an exposure assessment platform (EAP) to unify your asset inventory across fragmented environments, prioritize risk with contextual intelligence, and translate technical findings into business risk insights across your IT, AI, cloud, identity, and OT attack surfaces. For definitions to other key cybersecurity terms, visit the Tenable Glossary.

1. Cybersecurity and risk: Fragmented attack surface challenges

What is information security, and why is it important?
Understanding cyber threats and the adversary landscape
Understanding zero-day vulnerabilities, exploits, and attack mitigation
What is a cybersecurity risk assessment?
Understanding cyber risks and how to avoid them
What is a security operations center (SOC)?
Zero trust: Verify trust at every interaction stage across your network and systems
Understanding the role of cyber defense in cybersecurity
Network monitors: What they do. How they work. Why you need them.
The role of ethical hacking in mature cybersecurity programs
What is cyber insurance, and does my organization need it?

2. Exposure management: The strategic solution (CTEM framework)

What is exposure management?
Exposure management: Strategic steps to get ahead of cyber risk
What is an exposure assessment platform (EAP)?
What is CTEM?
The CTEM framework: Implementing a unified exposure management program (CTEM guide)
Unified vulnerability management (UVM)
What is exposure management in the cloud?

Asset discovery: Comprehensive asset inventory

What is cyber asset attack surface management (CAASM)?
External attack surface management (EASM)
What is attack surface management (ASM) in cybersecurity?

Prioritization, validation, and mobilization

Cyber risk quantification (CRQ): Quantifying and communicating exposure risk and business risk
What is penetration testing?
How penetration tests discover attack surface weaknesses
Cyber hygiene: Overview & best practices for proactive risk reduction

3. Vulnerability management and vulnerability assessment: Prioritizing action

Common Vulnerability Scoring System (CVSS)
Mean time to remediate (MTTR)
What is vulnerability assessment?
Understanding vulnerability assessment: A deep dive
What is patch management?
Endpoint detection and response (EDR)
Automated remediation

Risk-based prioritization

What is risk-based vulnerability management?
Understanding risk-based vulnerability management: A deep dive into prioritization
What is vulnerability management?
Vulnerability management: The complete guide

Discovery and scanning methods

What is network scanning?
Network scanning vs vulnerability scanning
How to select a network scanning tool
Network scanner best practices
Agentless asset and vulnerability discovery

4. Cloud security: Securing the modern environment

What is CSPM?
Understanding CSPM
Cloud misconfigurations
Cloud security in AWS, Azure and GCP
Cloud security overview
What is cloud security? Visibility and insight into all of your cloud infrastructure
Understanding cloud security: A deep dive

Cloud-native application protection (CNAPP)

What is CNAPP?
CNAPP: The complete guide
CNAPP vs CSPM vs cloud workload protection program (CWPP)
What is cloud vulnerability management?
What is cloud workload protection (CWP)?
Cloud detection and response (CDR)

DevSecOps and cloud infrastructure

Shift-left security and CI/CD pipelines
What is Kubernetes?
Kubernetes security posture management (KSPM)
Container security
Shift-left with IaC security
CI/CD workflow integration
Kubernetes and container image scanning

Holistic cloud risk

Multi-cloud and hybrid cloud security challenges
Zero trust in the cloud

5. Data security: Protecting your organization’s crown jewels

What is data security posture management (DSPM)?
DSPM vs. CSPM
How DSPM reduces cloud data risk
Data security posture management (DSPM) use cases
How DSPM works to protect your cloud data
What to look for in a DSPM solution

DSPM and compliance

Shadow data and DSPM
Data compliance and audit readiness with DSPM
Data security posture management (DSPM) in DevSecOps

6. Identity and attack path management: Securing your new perimeter

What is identity and access management (IAM)?
Key components of identity and access management (IAM)
Identity and access management (IAM) solutions
Identity and access management (IAM) lifecycle
IAM implementation guide
Privileged access management (PAM)
What is cloud infrastructure entitlement management (CIEM)?
Least privilege in cloud security
Least privilege enforcement with just-in-time access
What is just-in-time (JIT) access?
Identity-driven risk prioritization and toxic combinations

Attack path disruption

What is attack path management?
What is attack path analysis?

Active Directory security

What is Active Directory (AD) security?

7. Specialized exposure challenges: OT, AI, and compliance

Operational technology (OT) security

What is Operational Technology (OT)?
How to Reduce Cyber Risk With Operational Technology Security

Artificial intelligence (AI) security

What is DeepSeek? A full breakdown of the disruptive open-source LLM
Security for AI vs. AI for security
What is an AI acceptable use policy (AUP)?
What is shadow AI?

Compliance as an exposure management outcome

Payment card industry (PCI) security standards
Federal risk and authorization program (FedRAMP)
Compliance audit (CSPM)
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Tenable Vulnerability Management

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy.

Your Tenable Vulnerability Management trial also includes Tenable Web App Scanning.

Tenable Vulnerability Management

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

100 assets

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Tenable Vulnerability Management

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy.

Your Tenable Vulnerability Management trial also includes Tenable Web App Scanning.

Tenable Vulnerability Management

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

100 assets

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Tenable Attack Surface Management

Gain visibility into your internet-connected assets to eliminate blind spots and unknown sources of risk.

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Tenable Enclave Security

Know, expose and close IT and container vulnerabilities.

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Built for the modern attack surface, Nessus Expert enables you to see more and protect your organization from vulnerabilities from IT to the cloud.

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Expand your vulnerability assessment with advanced functionality that includes web app scanning and external attack surface discovery scanning.

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  • Unlimited vulnerability scanning
  • Web app scanning (5 FQDNs)
  • External attack surface discovery scanning (5 domains)
  • Pre-built policies for configuration & compliance audits
  • Vulnerability scoring for prioritization
  • Configurable reports
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