Buyer’s Guide

Best CSPM Tools (2026)

How to choose a cloud security posture management (CSPM) tool — the capabilities that matter for finding and fixing cloud exposure across AWS, Azure and GCP.

Definition

What is a CSPM tool?

A cloud security posture management (CSPM) tool continuously assesses cloud environments for misconfigurations, exposed resources and policy violations, then helps teams remediate them. Because misconfiguration is the leading cause of cloud data exposure, the best CSPM tools combine broad cloud coverage with risk-based prioritisation and, ideally, an external view of what is genuinely reachable from the internet. This guide covers what to weigh when comparing them.

External-first advantage: many CSPM tools only see what your cloud APIs report. An attacker’s outside-in view confirms what is actually reachable — the exposures that matter most.

Why it matters

Why CSPM matters in 2026

Cloud estates change constantly and a single misconfigured resource can expose sensitive data. With most cloud breaches traced to misconfiguration rather than sophisticated attacks, continuous CSPM is now essential to cloud security and compliance.

Key criteria

What to look for in a CSPM tool

Multi-cloud coverage

Consistent assessment across AWS, Azure and Google Cloud.

Misconfiguration depth

Detects storage, identity, network and service misconfigurations.

External reachability

Confirms what is genuinely internet-reachable, not just configured.

Risk prioritisation

Ranks findings by real-world, exploitable impact.

Agentless deployment

Fast time-to-value without deploying agents everywhere.

Compliance mapping

Maps findings to frameworks like CIS, ISO 27001 and Essential Eight.

How it works

How to choose a CSPM tool

01

Scope your clouds

List the accounts and providers you need covered.

02

Test detection

Compare how each tool finds real, reachable exposures.

03

Check prioritisation

Assess how well it separates critical risk from noise.

04

Confirm fit

Compliance mapping, reporting, integrations and data residency.

FAQ

CSPM tools FAQ

What should I look for in a CSPM tool?

Multi-cloud coverage, deep misconfiguration detection, external reachability validation, risk-based prioritisation, agentless deployment and compliance mapping.

What is the difference between CSPM and CNAPP?

CSPM focuses on cloud configuration and exposure; CNAPP is a broader suite that bundles CSPM with workload protection and more.

Do CSPM tools need agents?

The best external CSPM tools assess cloud exposure agentlessly, with connected accounts adding depth.

Which clouds should a CSPM tool support?

At minimum AWS, Microsoft Azure and Google Cloud Platform.

Assess your cloud posture

See your AWS, Azure and GCP exposure the way an attacker does — book a demo.

External Attack Surface

Discover and monitor every internet-facing asset you own.

Detect new CVEs and exposures as they appear.

Find misconfigurations across AWS, Azure and GCP.

Prove your security controls actually work.

Threat & Digital Risk

Our public threat intelligence platform, in real time.

Spot leaked credentials and targeted threats early.

AI-driven prioritisation that cuts through the noise.

Protect your brand, data and people beyond the perimeter.

API & Email Security

Discover and test externally exposed APIs.

Stop spoofing with SPF, DKIM and DMARC checks.

Dashboards and board-ready security reporting.

Continuously test your public web applications.

Stream validated findings to your SIEM, SOAR and ticketing tools.

Explore

See the full Attack Insights platform.

See Attack Insights in action.