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Anthropic Vendor Risk Assessment — Full Report

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

Risk Tier
Tier 3Moderate Risk
SOC 2
— Not Found
FedRAMP
— Not Authorized
Last Assessed
Mar 25, 2026
🟡IP Reputation: Abuse score: 42%, 21 reports🟡SSL/TLS: TLSv1.3🟢Domain Age: 24.5 years🟢Infrastructure: 11 open ports, 0 CVEs
SOC 2 Status
Anthropic has not had a SOC 2 claim detected on their trust page.
Sanctions Screening
Anthropic returned no matches in OFAC SDN, EU Consolidated, and UN sanctions screening.
Risk Tier
ThirdProof assigned Anthropic a Moderate Risk tier with 82% confidence across 27 intelligence sources.

24 sources queried. 82% confidence. Every Anthropic 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

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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
3Tier

Moderate Risk

Anthropic

Vendor Risk Assessment

Confidence Score82%

Based on data availability and source coverage

24

Sources Queried

21

Sources With Data

March 25, 2026

Last Assessed

Executive Summary

AI-generated analysis for Anthropic

Anthropic (anthropic.com), the AI safety and research company behind the Claude model family, presents a Moderate Risk (Tier 3) profile at this time of assessment. The vendor is a legally registered public benefit corporation (ANTHROPIC, PBC) in Delaware, carries no sanctions matches across OFAC, EU, or UN watchlists, and operates a domain with 24+ years of registration history managed through enterprise-grade registrar MarkMonitor. Positive signals include:

Key Findings

  • Clean domain reputation with no listings on SURBL, Spamhaus DBL, or Malware detection service
  • Valid TLS 1.3 configuration using strong cipher suites and HSTS enforcement
  • SOC 2 compliance claimed via a Vanta-hosted trust portal at trust.anthropic.com
  • No FDIC or SEC enforcement actions found, consistent with expectations for a private technology company
  • Zero known CVEs detected against the vendor's infrastructure Several concerns and gaps warrant buyer attention before proceeding. The vendor's infrastructure exposes 11 open ports — above the typical SaaS footprint of 3–5 for a marketing domain — and the primary website's HTTP security scanner HTTP security grade is C (55/100), indicating incomplete security header configuration. The vendor's AI data usage policy permits training on customer inputs and outputs unless customers actively opt out, a material concern for buyers handling sensitive data under medium data access conditions. The subprocessor page at anthropic.com/subprocessors exists but contains no enumerated subprocessors, making third-party supply chain assessment impossible at this time. Additionally, substantive community-sourced media signals document a $1.5B copyright settlement with book authors, a formal U.S. Department of Defense supply-chain risk designation, and the removal of a flagship safety pledge — all of which are material to enterprise trust and procurement decisions. SOC 2 and GDPR compliance are vendor-attested and have not been independently verified through a public registry. On balance, Anthropic is a well-known, institutionally-backed AI vendor with credible infrastructure and clean threat intelligence, but the combination of an opt-out AI training policy, unresolved subprocessor transparency, unverified compliance claims, and significant adverse media signals justifies a conditional engagement posture. Buyers should satisfy specific requirements before or shortly after onboarding.

Independence Statement

All evidence underpinning this report was sourced independently from external public registries, threat intelligence databases, DNS infrastructure analysis, and media archives — Anthropic did not participate in or have prior notice of this investigation.

Investigation Findings

11 findings identified for Anthropic

3 high8 medium
high

Tech Community Discussion: trust

3 Hacker News stories about "Anthropic" related to trust. Top story: "Anthropic drops flagship safety pledge" (723 points).

high

Moderate Abuse Score: 42%

The IP for anthropic.com (160.79.104.10) has a 42% abuse score with 21 reports. Some abuse activity has been reported.

high

Adverse Media: $1.5 billion settlement regarding AI accountability issues

2 article(s) reference significant concerns for "Anthropic": "$1.5 Billion Speed Bump: What the Anthropic Settlement Tells Us About AI Account..." (Tech Policy Press) https://news.google.com/rss/articles/CBMirgFBVV95cUxQcG9NN1lGNGJZWUVOTVh4Qmh0eWpRUXV6QmdEbWpNT3puSmM3ZHlmWXNoQlVEeTRVdEhnaHBqWTUzUVotU1owdFdmdlM4R1JyRnVBUkk0R3o1SHhTZDAyY3FYMjcyYkk3b1RvUkNMdnF3MDF1c3VxMjcxQUlna0hqQUt4ZU92MTA0TlhyeDl4UE1jbmhsMzdhcnRDelhiRmFrQjFhLUFnb0xMTG5uVnc?oc=5; "$30B Fumble: Anthropic Kills 1.5M-Agent Beast – OpenAI Poaches Creator in Second..." (Gadget Review) https://news.google.com/rss/articles/CBMiqgFBVV95cUxObmlMczZMNjVLMlk5c1NZSFhsU2lKNTVBYzNCcVRnbVAxWHZzRlNVdllPd1JoZ3JmWVN5NkdKT1BqZWxlNVBOUnVpSnVDQ1o5U3dOenFERWt0cUJTcjJyMHJSd0hLWEkxYWxqbFBuamZhbHlYa0tXMVRZNXhlclp1cGRHMkUyakEtdEpkZDRyT0JRSGFIRzV2R2RueTNGTWFzbS0zZjVhaEk2QQ?oc=5

medium

Recently Registered Entity

ANTHROPIC, PBC was first registered in the LEI system less than 1 year ago (2026-01-28T08:07:08Z).

medium

Adverse Media Scan Unavailable

A critical data source was unavailable during this investigation. Manual verification is recommended.

Source:Adverse Media Scan (Fallback)
medium

Tech Community Discussion: regulatory

2 Hacker News stories about "Anthropic" related to regulatory. Top story: "I am directing the Department of War to designate Anthropic a supply-chain risk" (1362 points).

medium

Tech Community Discussion: legal

2 Hacker News stories about "Anthropic" related to legal. Top story: "Anthropic agrees to pay $1.5B to settle lawsuit with book authors" (989 points).

medium

Tech Community Discussion: operational

2 Hacker News stories about "Anthropic" related to operational. Top story: "Anthropic officially bans using subscription auth for third party use" (655 points).

medium

HTTP Security Grade: C

anthropic.com received a mediocre grade (C). Some security headers are configured but improvements are needed. Note: This scan was performed on the marketing site (anthropic.com). The application endpoint (console.anthropic.com) may have different security headers. Verify the application domain separately.

medium

Multiple Certificate Issuers (31)

anthropic.com has certificates from 31 different Certificate Authorities. This may indicate inconsistent certificate management practices.

medium

AI Model Training Requires Opt-Out

anthropic.com may use customer data for AI training unless customers opt out. Review the opt-out process.

Security Strengths

21 positive signals verified

Legal Entity Actively Registered

Business Registration

No Sanctions Matches Found

Sanctions & Watchlist Screening

Firmographic Data Available

Company Intelligence

Domain Infrastructure Healthy

Domain Analysis

Valid SSL Certificate

Domain Analysis

11 Open Ports Detected

Infrastructure Exposure

Established Domain (24+ years)

Domain Registration

Clean domain reputation

Threat Intelligence

Tech Community Discussion: security

Tech Community Sentiment

Large Certificate Footprint (96 subdomains)

Certificate Transparency

Web Archive History Unavailable

Web Archive History

Threat Intelligence (OTX) Unavailable

Threat Intelligence (OTX)

Clean Safe Browsing Status

Malware & Phishing Check

Clean Website Security Scan

Website Security Scan

Certification Claimed: GDPR

Trust & Compliance Page Scan

Subprocessor Page Found (Placeholder)

Supply Chain & Subprocessor Discovery

Not Found as FDIC-Insured Institution

FDIC Institution Check

No SEC Enforcement Filings Found

SEC Filing Search

SOC 2 Compliance Claimed on Trust Page

Certification Registry Verification

Third-Party AI Providers Disclosed

AI Data Usage Policy

AI Data Retention Policy Not Specified

AI Data Usage Policy

Recommended Actions

Steps to address findings for Anthropic

  1. 1

    Activate AI training opt-out immediately: Log into your Anthropic account settings and disable AI training data usage before beginning any production data exchange. Document the confirmation screen or settings state for your vendor risk register. Then contact Anthropic's privacy team (privacy@anthropic.com or via trust.anthropic.com) to request written confirmation of the opt-out and clarification on the safety-review carve-out that applies even to opted-out accounts.

  2. 2

    Request the SOC 2 Type II report and bridge letter: Visit trust.anthropic.com to initiate an NDA and report access request, or contact Anthropic's security team directly. Ask for the most recent Type II report covering at least a 6-month audit period and a bridge letter confirming no material changes since the report date. This is the highest-priority compliance documentation step.

  3. 3

    Obtain and execute a Data Processing Agreement (DPA): Request Anthropic's standard DPA from their legal or privacy team. Review the subprocessor change notification clause (Article 28 GDPR requires advance notice). Since the public subprocessor page is currently unpopulated, request the current subprocessor list as an exhibit to the DPA.

  4. 4

    Clarify the government supply-chain risk designation: Community evidence from early 2026 documents a formal U.S. Department of Defense designation of Anthropic as a supply-chain risk. If your organization has federal contracts, government-adjacent procurement obligations, or operates in defense-adjacent sectors, consult your legal or compliance team before proceeding. Request Anthropic's response or position statement on this designation from their enterprise sales or legal team.

  5. 5

    Confirm TLS certificate auto-renewal within 2 weeks: Contact the vendor's technical or security team and ask them to confirm that automated certificate renewal is active for anthropic.com. Given the 41-day expiry window, this is time-sensitive. If you have an enterprise SLA, request that certificate management be included in uptime and incident notification obligations.

  6. 6

    Review the copyright settlement and IP sourcing implications: Anthropic settled a $1.5B lawsuit with book authors over training data sourcing. If your use case involves generating content, summaries, or creative output, consult your legal team regarding any downstream IP liability exposure. Ask Anthropic to confirm their current training data governance practices and whether the settlement has resulted in changes to data sourcing policies.

Intelligence Sources Queried

24 sources in this assessment

21of 24 sources returned data
IP Reputation
AI Data Usage Policy
Certification Registry Verification
Certificate Transparency
Domain Analysis
FDIC Institution Check
Business Registration
Historical Media Search
Tech Community Sentiment
Company Intelligence
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
Domain Registration
Threat Intelligence (OTX)
Adverse Media Scan (Fallback)
Web Archive History

Data Coverage Notes

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

  • Adverse media scan (primary 12-month source) was unavailable during this investigation. Historical media coverage and community discussion signals from Hacker News were used as supplementary sources, but recent news coverage from the past 12 months may be incomplete.
  • Web archive history data was unavailable during this investigation; however, domain registration records independently confirm a 24+ year domain history, mitigating the significance of this gap.
  • Threat intelligence from the Open Threat Exchange (OTX) was unavailable during this investigation. URLhaus and threat intelligence engine blacklist data confirmed a clean domain reputation, partially compensating for this gap.
  • External cyber risk scoring was not available for this assessment. The infrastructure and domain evidence gathered from other sources provides partial coverage but does not substitute for a full scored cyber risk profile.
  • The subprocessor page (anthropic.com/subprocessors) contains no enumerated entries, making third-party supply chain assessment impossible from publicly available data alone.
  • ISO 27001 registry lookup (IAF CertSearch) returned no results for Anthropic. This may reflect the absence of certification or incomplete registry coverage — manual verification is recommended if ISO 27001 is a contractual requirement.
  • The AI data retention policy could not be extracted in a structured form from the vendor's privacy policy; the retention period for AI-processed inputs and outputs remains unclear from publicly available documentation.
183+
Vendors assessed
98%
Average confidence
<2 min
Time to report
What a ThirdProof assessment covers

Sanctions Screening

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

Cyber Risk Assessment

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

Business Registration

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

Adverse Media Analysis

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

Domain & Infrastructure

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

Company Intelligence

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

Trust & Compliance Verification

Does Anthropic 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 Anthropic depend on? ThirdProof discovers subprocessors from vendor-published pages and runs sanctions screening and safe browsing checks against each one.

Regulatory & Financial Filings

Has Anthropic 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 Anthropic and every other vendor in your stack — average report time: 7 minutes. Get Anthropic's Full Report Free →

Frequently asked about Anthropic

Does Anthropic have SOC 2 Type II?+
No SOC 2 found. Anthropic rated Moderate Risk — 11 open ports detected. See all 8 findings →
Is Anthropic on the OFAC sanctions list?+
Anthropic returned no matches in ThirdProof's OFAC SDN, EU Consolidated, and UN sanctions screening as of March 2026.
What is Anthropic's vendor risk tier?+
ThirdProof assigned Anthropic a risk tier of Moderate Risk with 82% confidence based on assessment across 27 intelligence sources as of March 2026.
Can I get an auto-filled security questionnaire for Anthropic?+
Yes. Every ThirdProof investigation of Anthropic 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 Anthropic a single email or waiting for a vendor response.
Is Anthropic safe to use as a vendor?+
Anthropic is a AI platform vendor that handles organizational 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 Anthropic's full risk profile.
Does Anthropic have SOC 2 certification?+
No SOC 2 found. Anthropic rated Moderate Risk — 11 open ports detected. See all 8 findings →
Is Anthropic FedRAMP authorized?+
FedRAMP authorization is relevant for government contractors evaluating AI platform platforms. Based on ThirdProof's assessment, Anthropic is not currently listed on the FedRAMP Marketplace. Organizations with federal compliance requirements should verify this directly and consider alternative vendors with FedRAMP authorization where required.
Has Anthropic had any data breaches?+
Data breach history is an important signal for any vendor, particularly AI platform platforms like Anthropic that handle organizational 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 Anthropic on any sanctions lists?+
Sanctions screening is standard due diligence for AI platform vendors. ThirdProof screens Anthropic against OFAC SDN, consolidated international sanctions lists, and PEP databases. The screening uses entity name verification to reduce false positives. If Anthropic or any associated officers appear on a sanctions list, this triggers automatic escalation to the highest risk tier.
How do I assess Anthropic for vendor risk?+
Assessing Anthropic as a AI platform vendor involves verifying SOC 2 Type II and applicable industry standards 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.

Anthropic is in your vendor stack. Can you prove you assessed them?

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 Anthropic 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.