What are the security risks of assigning the AWS AWSSecurityHubReadOnlyAccess managed policy?

This policy allows read-only access to Security Hub findings and configuration data, so the main risk is exposure of security telemetry and environment context. It does not let the principal change findings or settings, but it can reveal weaknesses, controls, and incident signals. Limit it to users who genuinely need visibility and audit access patterns.

What exposure does a read-only Security Hub policy create?

The key exposure is not system control, but visibility. AWS AWSSecurityHubReadOnlyAccess can reveal which controls are enabled, which checks are failing, what resources are flagged, and how security teams are prioritising remediation. That gives the principal a broad view of your security posture, deployment patterns, and areas that may be weak or operationally sensitive.

A read-only role is still powerful when the data it can see includes findings, compliance status, suppression choices, and cross-account or multi-region context. In practice, that can let a user infer where the organisation has weak guardrails, which services are in use, and what kinds of incidents or misconfigurations are being monitored.

Because the policy is read-only, the primary concern is disclosure, not direct tampering. The more mature the Security Hub deployment, the more context the principal may learn about architecture, detective controls, and the organisation’s security operating rhythm.

What can an attacker or insider learn from Security Hub visibility?

A Security Hub reader can often use findings as a map of your environment. Even if they cannot alter alerts, they may learn which accounts are active, which regions are monitored, which controls are failing, and which assets look exposed. That information can support reconnaissance, targeting, or social engineering because it turns defensive telemetry into an intelligence source.

If the role is handed to a contractor, analyst, or automation account that does not truly need full security visibility, the risk is unnecessary disclosure of sensitive environment context. AWS Security Guide is useful here because Security Hub is only one part of the broader AWS security picture, and it should be governed alongside logging, detection, and account access.

Read-only access can also expose the operational reality of your controls. A person who sees repeated findings, muted alerts, or persistent misconfigurations can infer where security debt exists and where the organisation is likely to have weak response discipline.

How should you scope and audit this policy safely?

Use this managed policy only when the job genuinely requires security findings review or audit oversight. The safer pattern is to grant the minimum visibility needed, then review who has the policy, why they have it, and whether they need access across all accounts and regions. AWS IAM Policies and Roles Guide helps frame that decision in terms of policy evaluation, role assumption, and privilege boundaries.

Pair the policy with access review and logging so you can confirm who queried Security Hub data and when. If the role is used by tooling or a shared support function, treat it as audit-sensitive access rather than routine read access, because the data itself may be sensitive even when the permissions are not write-capable.

Do not assume that read-only access is automatically low risk. If the principal can view findings tied to credentials, network exposure, or insecure configuration, the policy can still reveal the exact areas an attacker would want to probe next.

Risk and Threat Considerations

The main risk is intelligence leakage. Security Hub findings can expose control failures, sensitive asset context, and incident signals that help an insider or intruder plan the next step. OWASP Non-Human Identity Top 10 is relevant as a broader reminder that read access to security telemetry should still be treated as an access decision with blast-radius implications.

Failure mechanism: A principal with unnecessary read access can aggregate findings, config state, and account context into a usable map of the environment, even without changing anything.

Impact: That map can speed up targeting, expose weak control areas, and disclose sensitive security operations information to people who do not need it.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

NIST SP 800-53 Rev 5, CIS Controls v8 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.

Framework	Control / Reference	Relevance
NIST SP 800-53 Rev 5	AU-6 — Audit Record Review, Analysis, and Reporting	Security Hub findings are audit telemetry that should be reviewed and acted on carefully.
	AC-6 — Least Privilege	The policy grants broad read visibility, so access should be limited to need-to-know users.
	AC-3 — Access Enforcement	The policy is an access decision that determines who can view security findings and configuration data.
Recommendation — Review Security Hub access and alert data as audit evidence and restrict who can inspect it. Limit Security Hub read access to the smallest set of users who need it. Enforce role scoping so only approved principals can view Security Hub data.
CIS Controls v8	CIS-5 — Account Management	This is an account and entitlement assignment decision that should be reviewed and justified.
Recommendation — Review and remove unnecessary Security Hub policy assignments on a regular schedule.
NIST CSF 2.0	PR.AA-01 — Identities and credentials are issued, managed, verified, revoked, and audited	The policy assignment is an identity and access entitlement that should be governed and audited.
Recommendation — Govern Security Hub access as a managed entitlement with periodic review and revocation.

Practitioner Guidance

What to verify: Confirm whether the user needs Security Hub visibility for investigation, audit, or reporting, not just general curiosity or convenience. If the access exists for automation, check whether a narrower role or scoped reporting path would satisfy the use case.

Common mistake: Teams often treat read-only policies as harmless and forget that findings, compliance posture, and suppression history can be highly sensitive. The policy is not dangerous because it can write, it is dangerous because it can reveal what is weak.

Decision rule: If the principal can act on the information they can see, or if the data reveals sensitive control gaps, keep the policy tightly limited and review the assignment as a privileged visibility grant rather than a routine reader role.

Practitioner takeaway: The question is not whether the policy can change Security Hub, but whether the person holding it should be trusted with the full security story your findings reveal.