Die besten Cloud Security Scan-Tools (CSPM) 2026

Zu den besten Cloud Security Scanning Tools im Jahr 2026 gehören ImmuniWeb Discovery, Wiz, Prisma Cloud (Palo Alto), Microsoft Defender for Cloud sowie die Open-Source-Tools Prowler und ScoutSuite. Sie erkennen Fehlkonfigurationen, exponierte Speicherbereiche und IAM-Risiken in AWS, Azure und GCP. Die richtige Wahl hängt von der Multi-Cloud-Abdeckung, agentenlosem Scanning und der Frage ab, ob Sie zusätzlich Kontext zur externen Angriffsfläche benötigen.

Cloud security scanning, often delivered as Cloud Security Posture Management (CSPM), continuously checks cloud accounts for misconfigurations, publicly exposed storage, weak identity and access management, and shadow or forgotten resources across AWS, Azure and GCP. These misconfigurations, not exotic exploits, are behind a large share of cloud data breaches.

CSPM is one layer of the broader CNAPP category, which also covers workload, code and runtime security. For many teams, posture scanning is the priority, and the question becomes whether a tool covers all their clouds, scans agentlessly, and ideally connects cloud findings to their wider external attack surface.

Die besten Cloud Security Scanning Tools auf einen Blick

Die verglichenen Tools

ImmuniWeb Discovery

Best for: combined external attack surface, cloud and dark web (CTEM). Discovery detects exposed cloud storage and misconfigurations while also mapping your external attack surface and dark web exposure from one platform. That context matters: a misconfigured bucket is far more urgent when you can see it is internet-facing and tied to a known asset. A free Cloud Security Test offers a quick first look.

Wiz

Best for: cloud-native enterprises wanting agentless depth. Wiz is known for fast, agentless scanning and a risk graph that connects findings across the cloud estate. It sits in the premium segment and targets cloud-native enterprises.

Prisma Cloud

Best for: large enterprises needing broad CNAPP. Prisma Cloud from Palo Alto Networks offers very broad multi-cloud and CNAPP coverage. It is comprehensive but heavier to deploy and operate, suiting large enterprises.

Microsoft Defender for Cloud

Best for: Microsoft and Azure-centric estates. Defender for Cloud provides native posture and workload protection with the tightest Azure integration. It is the natural choice for organisations standardised on Microsoft.

Prowler

Best for: Budget- und DevOps-Teams. Prowler ist ein kostenloses, Open-Source-Befehlszeilentool, das Hunderte von CIS-, PCI- und anderen Checks auf AWS, Azure und GCP ausführt. Es bietet ein hervorragendes Preis-Leistungs-Verhältnis für Teams, die mit CLI-Workflows vertraut sind.

ScoutSuite

Best for: DIY multi-cloud auditing. ScoutSuite is a free, open-source multi-cloud auditing tool that reports on configuration risks. It is a solid option for security teams running their own assessments.

Free and open-source cloud scanners

Mit den Open-Source-Tools Prowler und ScoutSuite können Sie Cloud-Konfigurationen ohne Lizenzkosten prüfen – ideal für budgetbewusste oder von DevOps geführte Teams, die diese einsetzen können. Der Nachteil ist, dass Sie den Betrieb und die Auswertung selbst übernehmen müssen.

For a quick managed check, ImmuniWeb's free Cloud Security Test detects unprotected cloud storage and common misconfigurations and returns a report, making it a fast first step before adopting a continuous platform.

So wählen Sie ein Cloud-Security-Scanning-Tool aus

Weigh these factors against your cloud footprint and team capacity:

• Multi-Cloud-Abdeckung für AWS, Azure und GCP, je nach Ihrer Nutzung.
• Agentless vs agent-based collection.
• Detection of misconfigurations, IAM risks, exposed storage and shadow cloud.
• Integration with attack surface management for external context.
• Compliance mapping to CIS, PCI DSS, ISO 27001 and SOC 2.
• Quality of alerts and remediation guidance.
• Ein kostenloser oder Open-Source-Einstieg zur Validierung der Eignung.

Where ImmuniWeb fits

ImmuniWeb Discovery differs from pure CNAPP platforms by tying cloud posture to your external attack surface and dark web exposure under one Continuous Threat Exposure Management (CTEM) view. The result is prioritisation by real-world exposure rather than a flat list of misconfigurations.

To see where you stand, run the free Cloud Security Test, then decide whether continuous, context-aware monitoring is justified.

Related resources

• ImmuniWeb Discovery — Attack Surface Management
• Free Cloud Security Test
• Best dark web monitoring tools
• Supply chain security & third-party risk