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Microsoft Teams Vendor Risk Assessment — Full Report

Before you share customer data with Microsoft Teams, your compliance team needs documented proof they can be trusted. ThirdProof investigated Microsoft Teams across 27 intelligence sources — here's what we found.

✓ FedRAMP Status: Authorized (Moderate) — verified against marketplace.fedramp.gov

Microsoft Teams is a communications platform. Communications vendors that handle organizational messages, calls, or collaboration data require SOC 2 assessment and in regulated industries, HIPAA BAA availability and FedRAMP authorization status.

Risk Tier
Tier 2High Risk
SOC 2
— Not Found
FedRAMP
✓ Authorized
Last Assessed
Mar 4, 2026
FedRAMP Status
Microsoft Teams is listed on the FedRAMP Marketplace as Authorized (Moderate) as of March 2026.

22 sources queried. 98% confidence. Every Microsoft Teams investigation produces both a risk report and an auto-filled security questionnaire — no vendor follow-up required.

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5 free investigations|Risk report + auto-filled questionnaire|Avg. 7 minutes

Certification & Compliance Status

Need a complete vendor security questionnaire?

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FedRAMP Authorized (Moderate)

Verified against FedRAMP Marketplace API as of March 2026

Verified against the official FedRAMP Marketplace API as of March 2026.

Microsoft Teams is part of Microsoft 365 Government, authorized at Moderate and High impact levels.

27 data sources queried per assessment
Reports generated in an average of 7 minutes
SHA-256 verified for audit integrity
Deterministic risk scoring — no AI guesswork
2Tier

High Risk

Microsoft Teams

Vendor Risk Assessment

Confidence Score98%

Based on data availability and source coverage

22

Sources Queried

22

Sources With Data

March 4, 2026

Last Assessed

Executive Summary

AI-generated analysis for Microsoft Teams

Microsoft Teams is a globally recognized enterprise collaboration platform operated by Microsoft Corporation, with a domain registered since 1991 and a Cisco Umbrella ranking of #49, reflecting substantial web traffic and established presence.

Area Requiring Attention

The platform demonstrates strong technical security posture across SSL/TLS (Grade A), HTTP headers (Grade B+), clean domain reputation across 94 security engines, and no adverse media or sanctions findings. However, the rule engine has assigned a Tier 2 (High Risk) rating, driven primarily by an elevated IP abuse score of 46% with 634 reports on a Microsoft-operated data center IP, which warrants investigation despite the vendor's enterprise standing. Additional gaps include the absence of a publicly accessible subprocessor list and GDPR compliance that is vendor-attested rather than independently verified. For a retail organization subject to PCI-DSS 4.0 and CCPA/GDPR obligations, these transparency gaps require remediation before Microsoft Teams can be fully cleared for use in or adjacent to the cardholder data environment.

Independence Statement

All evidence presented in this report was independently sourced from external data providers without vendor participation, notification, or input.

Investigation Findings

4 findings identified for Microsoft Teams

1 high2 medium1 low
high

Moderate Abuse Score: 46%

The IP for teams.microsoft.com (52.123.128.14) has a 46% abuse score with 634 reports. Some abuse activity has been reported.

medium

Multiple Certificate Issuers (17)

teams.microsoft.com has certificates from 17 different Certificate Authorities. This may indicate inconsistent certificate management practices.

medium

No Public Subprocessor Page Found

No accessible subprocessor page was found for teams.microsoft.com. GDPR Article 28 requires data processors to maintain a list of subprocessors. Vendors with mature data governance typically publish this list.

low

No Email Infrastructure

teams.microsoft.com has no MX records, meaning it cannot receive email directly.

Security Strengths

20 positive signals verified

Legal Entity Actively Registered

Business Registration

No Sanctions Matches Found

Sanctions & Watchlist Screening

No Firmographic Data Available

Company Intelligence

Valid SSL Certificate

Domain Analysis

2 Open Ports Detected

Infrastructure Exposure

Established Domain (34+ years)

Domain Registration

Clean Domain Reputation

Threat Intelligence

Well-Known Domain

Threat Intelligence

Tech Community Discussion: security incident

Tech Community Sentiment

HTTP Security Grade: B+

HTTP Security Scan

SSL/TLS Grade: A

SSL/TLS Analysis

Large Certificate Footprint (1508 subdomains)

Certificate Transparency

Established Web Presence (9+ years)

Web Archive History

No Threat Intelligence Pulses

Threat Intelligence (OTX)

Clean Safe Browsing Status

Malware & Phishing Check

Clean Website Scan

Website Security Scan

Certification Claimed: GDPR

Trust & Compliance Page Scan

Not Found as FDIC-Insured Institution

FDIC Institution Check

No SEC Enforcement Filings Found

SEC Filing Search

No Historical Adverse Media Found

Historical Media Search

Recommended Actions

Steps to address findings for Microsoft Teams

  1. 1

    Obtain and execute Microsoft's Data Processing Addendum (DPA) for Teams — download it directly from https://aka.ms/DPA — and retain a signed copy alongside your TPSP list for QSA review under PCI-DSS 4.0 Requirement 12.8.

  2. 2

    Download Microsoft's SOC 2 Type II report and ISO 27001 certificate from the Microsoft Service Trust Portal (https://servicetrust.microsoft.com), which requires a free Microsoft account — these documents confirm the security controls underpinning Teams and satisfy PCI-DSS 12.8.5 TPSP due diligence requirements.

  3. 3

    Retrieve Microsoft's current subprocessor list from the Microsoft Privacy portal (https://privacy.microsoft.com) and document which subprocessors have access to data flowing through Teams; retain this with your GDPR and CCPA compliance records.

  4. 4

    Raise the elevated IP abuse score on 52.123.128.14 with your Microsoft account representative or through the Microsoft Security Response Center (https://msrc.microsoft.com/report), and document the response within 90 days in your risk register.

  5. 5

    Complete a PCI-DSS shared responsibility matrix for Microsoft Teams that documents which PCI-DSS 4.0 controls Microsoft manages versus your organization, focusing on data transmission, access controls, and logging requirements — Microsoft's compliance documentation on the Service Trust Portal can serve as a starting point.

Intelligence Sources Queried

22 sources in this assessment

22of 22 sources returned data
IP Reputation
Threat Intelligence (OTX)
Certificate Transparency
Domain Analysis
FDIC Institution Check
Business Registration
Historical Media Search
Tech Community Sentiment
Company Intelligence
Adverse Media Scan (Fallback)
HTTP Security Scan
Sanctions & Watchlist Screening
Malware & Phishing Check
SEC Filing Search
Infrastructure Exposure
SSL/TLS Analysis
Supply Chain & Subprocessor Discovery
Trust & Compliance Page Scan
Website Security Scan
Threat Intelligence
Web Archive History
Domain Registration

Data Coverage Notes

Some data sources may have had limited availability during this assessment. This does not reflect negatively on the vendor.

  • Firmographic data could not be retrieved for teams.microsoft.com as a subdomain; this is expected behavior and does not reflect a data quality issue with Microsoft Corporation as an entity.
  • External cyber risk scoring was not available from all sources, which may limit the completeness of the infrastructure risk picture.
  • The subprocessor scan evaluated 20 common disclosure paths but may not have reached all possible locations where Microsoft publishes subprocessor information; manual verification via Microsoft's privacy portal is recommended.
  • Certificate Transparency logs show 4,022 total certificates with all marked as expired and zero recent certificates in the dataset, which may reflect a data freshness limitation in the CT log query rather than an actual lapse in certificate management.
183+
Vendors assessed
98%
Average confidence
<2 min
Time to report
What a ThirdProof assessment covers

Sanctions Screening

Is Microsoft Teams on any OFAC, EU, or UN sanctions list? Are any officers or affiliates flagged?

Cyber Risk Assessment

What is Microsoft Teams's security posture? Threat intelligence scanning, known vulnerabilities, and security header analysis.

Business Registration

Is Microsoft Teams a legitimately registered business entity? Corporate status, jurisdiction, and officer verification.

Adverse Media Analysis

Has Microsoft Teams appeared in negative news coverage? Data breaches, lawsuits, regulatory actions, and complaints.

Domain & Infrastructure

Is Microsoft Teams's website secure? TLS configuration, DNS hygiene, security headers, and domain age analysis.

Company Intelligence

What are Microsoft Teams's firmographics? Employee count, industry classification, technology stack, and corporate structure.

Trust & Compliance Verification

Does Microsoft Teams claim SOC 2, ISO 27001, HITRUST, or FedRAMP? ThirdProof scans trust pages for certification claims and cross-references the FedRAMP public registry for independent verification.

Supply Chain & Subprocessor Discovery

Who does Microsoft Teams depend on? ThirdProof discovers subprocessors from vendor-published pages and runs sanctions screening and safe browsing checks against each one.

Regulatory & Financial Filings

Has Microsoft Teams appeared in SEC enforcement filings? Is it associated with any FDIC bank failures? ThirdProof searches regulatory databases with entity verification to confirm attribution.

Full methodology, rule engine, and AI disclosure: /methodology

Seeing this in an audit? ThirdProof lets you investigate Microsoft Teams and every other vendor in your stack — average report time: 7 minutes. Get Microsoft Teams's Full Report Free →

Frequently asked about Microsoft Teams

Is Microsoft Teams FedRAMP authorized?+
Yes, Microsoft Teams holds FedRAMP Moderate authorization as of March 2026.
Can I get an auto-filled security questionnaire for Microsoft Teams?+
Yes. Every ThirdProof investigation of Microsoft Teams produces two deliverables: an audit-ready risk report and a 133-question security questionnaire pre-filled with evidence from 27 independent sources. The questionnaire is mapped to SIG, SOC 2, HIPAA, PCI DSS and 9 other frameworks — answered without sending Microsoft Teams a single email or waiting for a vendor response.
Is Microsoft Teams safe to use as a vendor?+
Microsoft Teams is a communications vendor that handles organizational messages and collaboration data. Safety depends on their current security posture, certification status, and how they handle your specific data. ThirdProof automates this evaluation across 27 intelligence sources — sanctions databases (OFAC, EU, UN), business registration verification, adverse media scanning, and cyber risk assessment — producing a deterministic risk tier with confidence score plus an auto-filled security questionnaire. Run a free investigation to see Microsoft Teams's full risk profile.
Does Microsoft Teams have SOC 2 certification?+
No SOC 2 found. Microsoft Teams rated . See all 0 findings →
Has Microsoft Teams had any data breaches?+
Data breach history is an important signal for any vendor, particularly communications platforms like Microsoft Teams that handle organizational messages and collaboration data. ThirdProof's adverse media analysis searches multiple news APIs and public records for data breaches, security incidents, lawsuits, regulatory enforcement actions, and financial distress signals. Each finding is linked to its original source with severity classification.
Is Microsoft Teams on any sanctions lists?+
Sanctions screening is standard due diligence for communications vendors. ThirdProof screens Microsoft Teams against OFAC SDN, consolidated international sanctions lists, and PEP databases. The screening uses entity name verification to reduce false positives. If Microsoft Teams or any associated officers appear on a sanctions list, this triggers automatic escalation to the highest risk tier.
How do I assess Microsoft Teams for vendor risk?+
Assessing Microsoft Teams as a communications vendor involves verifying SOC 2, HIPAA BAA availability, and FedRAMP compliance, reviewing their subprocessor chain, and checking sanctions exposure. ThirdProof automates this across 27 intelligence sources in an average of 7 minutes — no questionnaires or vendor participation required. Your first 5 investigations are free.
How long does a ThirdProof assessment take?+
A ThirdProof assessment completes in an average of 7 minutes. 27 intelligence sources are queried in parallel — sanctions databases, business registries, threat intelligence feeds, certificate transparency logs, and more. The result is a deterministic risk tier with confidence score and audit-ready PDF report.
Is ThirdProof free?+
ThirdProof offers 5 free vendor assessments with no credit card required. Each assessment includes the full report — risk tier, confidence score, individual findings, executive summary, and PDF export. Paid plans start at $399/month for teams that need ongoing vendor monitoring.
Can I use a ThirdProof report as SOC 2 audit evidence?+
Yes. ThirdProof reports are designed to satisfy SOC 2 CC9.2 (vendor risk management) requirements. Each report includes SHA-256 integrity verification, methodology disclosure, source attribution for every finding, and AI content labeling. Auditors can independently verify the report's authenticity and trace each finding to its original source.
How is ThirdProof different from a security questionnaire?+
Security questionnaires require vendor participation, take weeks, and produce self-reported answers. ThirdProof queries 27 independent intelligence sources — no vendor involvement needed. Risk tiers are assigned by a deterministic rules engine (not AI opinion), and every finding links to its original source. You get an audit-ready report in an average of 7 minutes instead of waiting weeks for a questionnaire response.

Microsoft Teams is used by your team. Have you assessed their risk?

SOC 2 CC9.2, HIPAA, PCI-DSS, and CMMC all require documented vendor due diligence — not just knowing the answer, but having audit-ready evidence you verified it. Most compliance teams can't produce that documentation on demand.

ThirdProof investigates Microsoft Teams across 27 intelligence sources in an average of 7 minutes — sanctions screening, cyber posture, SOC 2 verification, FedRAMP status, and more. Every investigation produces two deliverables: an audit-ready risk report and an auto-filled security questionnaire your prospects and auditors expect to see.

✓ 5 free investigations✓ Risk report + auto-filled questionnaire✓ No credit card required✓ Average report time: 7 minutes

Replaces $600–$900 in manual compliance consulting time per vendor assessed.