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What is Security Posture Management?
Security posture management continuously assesses cloud and SaaS configurations to identify misconfigurations before attackers exploit them. Learn what CSPM, SSPM, and DSPM cover and why continuous assessment matters.
What Security Posture Management Covers
Security posture management encompasses three primary technology categories. Cloud Security Posture Management (CSPM) evaluates cloud infrastructure configurations against security best practices and compliance frameworks, identifying misconfigured storage, overly permissive IAM policies, missing encryption, and disabled logging. SaaS Security Posture Management (SSPM) evaluates the security configurations of SaaS applications — Microsoft 365, Salesforce, Slack, ServiceNow — identifying misconfigured sharing permissions, disabled MFA enforcement, over-privileged integrations, and compliance gaps. Data Security Posture Management (DSPM) discovers where sensitive data resides across cloud environments, evaluates who has access to it, and identifies data that is exposed or insufficiently protected.
Continuous vs. Point-in-Time Assessment
The defining characteristic of posture management platforms is continuous assessment — not periodic audits. Cloud and SaaS environments change constantly: new resources are provisioned, configurations are modified, integrations are added, data is created and moved. A security assessment conducted monthly or quarterly produces a snapshot that is outdated within days as the environment changes. Continuous posture management provides current visibility into configuration state, alerting on new misconfigurations as they appear rather than discovering them in the next assessment cycle.
Security Posture for PE Due Diligence
For M&A due diligence, deploying a CSPM and SSPM tool against an acquisition target's environment during the due diligence period provides a comprehensive, rapid assessment of cloud and SaaS security posture without requiring access to internal systems or extensive engagement time. CSPM output from an AWS or Azure environment reveals misconfigured storage, exposed databases, over-permissive IAM roles, and missing security controls in hours. This intelligence supplements traditional due diligence questionnaire responses with objective technical evidence of actual configuration state.
Real-World Example: Capital One — CSPM Would Have Caught It
The Capital One breach that exposed 106 million records in 2019 originated from a misconfigured WAF that allowed server-side request forgery, combined with an overly permissive IAM role. A CSPM tool deployed against Capital One's AWS environment would have flagged both the WAF misconfiguration and the overly permissive IAM role as security findings — because both deviated from AWS security best practices that CSPM tools check continuously. The investigation confirmed that the combination of a misconfigured service and an over-permissive IAM role was the attack path. CSPM provides exactly this type of continuous check.
Of cloud security incidents are caused by misconfigurations that continuous posture management would have identified — making CSPM and SSPM the controls with the highest direct impact on the most common cloud breach vector.