Security checks / Check reference / Risky users & sign-ins

Risk Detection Anonymized IP Address

High Severity Microsoft 365 security check in the Risky users & sign-ins domain.

Sign-in from an anonymized IP address (VPN, Tor, or proxy) Anonymized IPs hide the attacker's true location, making forensic investigation harder. Siemserva runs this check automatically across your tenant and maps every finding to the compliance frameworks below.

High SeverityRisky users & sign-insSCuBA MS.AAD.3.3v2

Check summary

Severity
High
Domain
Risky users & sign-ins
Rank in domain
4
Frameworks
6

What this check verifies

Sign-in from an anonymized IP address (VPN, Tor, or proxy)

Why it matters

Anonymized IPs hide the attacker's true location, making forensic investigation harder. May also indicate policy evasion by insiders

How to fix it

Evaluate if the user has a legitimate need for anonymization; if not, block via CA untrusted-location policy

Siemserva flags every tenant where this check fails and, with Senserva Trustworthy AI remediation, can propose a validated fix you approve before it applies.

Ask your own AI about this check

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Compliance framework mappings

Findings from this check serve as evidence for:

SCuBAMCSBNISTSOC2CISHIPAASCuBA MS.AAD.3.3v2SCuBA MS.AAD.3.4v1SCuBA MS.AAD.3.5v1MCSB LT-3MCSB IM-6MCSB IR-1

References

learn.microsoft.com: /security/benchmark/azure/mcsb-identity-management...www.cisa.gov: /sites/default/files/2023-12/Azure%20Active%20Dire...

Related Risky users & sign-ins checks

Risk Detection Anomalous TokenRisk Detection Data MissingRisk Detection Leaked CredentialsRisk Detection Malicious IP AddressRisk Detection OfflineRisk Detection StaleRisk Detection State At RiskRisk Detection State Confirmed Compromised

Common questions

What does the Risk Detection Anonymized IP Address check verify?

Sign-in from an anonymized IP address (VPN, Tor, or proxy) It is a High Severity check in the Risky users & sign-ins domain, one of the 650+ checks Siemserva runs across Microsoft 365, Intune, Defender, and Entra ID.

How do I fix a Risk Detection Anonymized IP Address finding?

Evaluate if the user has a legitimate need for anonymization; if not, block via CA untrusted-location policy Siemserva ranks the finding by Severity and, with Senserva Trustworthy AI, can propose a validated, approve-before-apply configuration fix.

Which compliance frameworks does this check evidence?

Findings from this check map to SCuBA, MCSB, NIST, SOC2, CIS, HIPAA, including SCuBA policy MS.AAD.3.3v2, MS.AAD.3.4v1, MS.AAD.3.5v1, and MCSB controls LT-3, IM-6, IR-1. That mapping is what turns a scan finding into audit evidence.

Can I ask my own AI about this check?

Yes. This page includes a free copy-paste AI prompt carrying the check's facts: what it verifies, the risk, the remediation, and the framework mappings. Paste it into Claude, ChatGPT, or Copilot; cite-worthy detail without giving an AI access to your tenant.

All 672 checks with severities and mappings: the Microsoft 365 security checks catalog.

Sponsored by Senserva

Siemserva by Senserva runs this check, Risk Detection Anonymized IP Address for example, across your own tenant: which tenants pass, which fail, ranked by Severity with the evidence attached.

  • 650+ Microsoft 365, Intune, Defender, and Entra ID checks in one scan
  • Findings mapped to SCuBA, CIS, NIST, HIPAA, SOC 2, and MCSB for audit-ready evidence
  • Senserva Trustworthy AI driven configuration remediation: validated, approve-before-apply fixes
  • Optional AI Enhanced Reporting: plain-language summaries and recommended next steps written into your reports
  • Multi-tenant and MSP practices, with bulk tenant audits and client-ready reporting
Compliance Status Report
Risk Detection Anonymized IP Address across 2 tenants, ranked by Severity
23
FAILING
87
PASSING
41
OTHER FINDINGS
CHECKSEVERITYSTATUSFINDINGS
Risk Detection Anonymized IP AddressHighFAILING23
MFA for all usersCritical-11
Legacy authentication blockedHigh-6
Estimated report, sample data for illustration
Get Going with Senserva Senserva compliance Built for IT admins, security teams, and auditors, with audit-ready evidence. Senserva is a Microsoft Intelligent Security Association member.
Microsoft 365 compliance and audit evidence
See this check's evidence trail, click to play

How findings become audit evidence, in two minutes. Watch page · All videos.

Reference: the compliance and audit guide, and the full checks catalog.
Data notice: check definitions describe what Siemserva verifies and are provided as is, for informational purposes only, without warranty of any kind. Framework mappings are informational and do not constitute compliance advice; confirm requirements with your assessor. All use of this data is subject to the Senserva EULA.