Zillow Security Assessment
Real Estate & Property
Zillow is a real estate and rental marketplace dedicated to empowering consumers with data, inspiration and knowledge around the place they call home, and connecting them with the best local professionals who can help.
9-Dimension Security Framework
Identity & Access Management
API Security
AI Integration Security
NEWInfrastructure Security
Data Protection
Vulnerability Management
Breach History
Incident Response
AI Integration Security Assessment (9th Dimension)
Assess whether SaaS applications are safe for AI agent integration using Anthropic's Model Context Protocol (MCP) standards. Identify Shadow AI risks before they become breaches and make safer AI tool decisions than your competitors.
Last updated: January 17, 2026 at 08:46 AM
Assessment Transparency
See exactly what data backs this security assessment
Data Coverage
4/8 security categories assessed
Score based on 4 of 8 categories. Missing categories could not be assessed due to lack of public data or vendor restrictions.
Evaluation Friction
Evaluation friction estimates how long it typically takes to fully evaluate this vendor's security practices, from initial contact to complete assessment.
Transparency indicators show data completeness and vendor accessibility
Comprehensive Security Analysis
In-depth assessment with detailed recommendations
Security Analysis
Executive Summary
| Metric | Value | Assessment |
|---|---|---|
| Security Grade | D | Needs Improvement |
| Risk Level | High | Not recommended |
| Enterprise Readiness | 42% | Gaps Exist |
| Critical Gaps | 0 | None |
Security Assessment
| Category | Score | Status | Action Required |
|---|---|---|---|
| 🟢 Breach History | 100/100 | excellent | Maintain current controls |
| 🟡 Vulnerability Management | 85/100 | good | Maintain current controls |
| 🟠 Incident Response | 60/100 | needs_improvement | Monitor and improve gradually |
| 🟠 API Security | 30/100 | needs_improvement | Add rate limiting and authentication |
| 🟠 Infrastructure Security | 30/100 | needs_improvement | Review and enhance controls |
| 🟠 Data Protection | 30/100 | needs_improvement | Implement encryption at rest, TLS/HTTPS, and 1 more |
| 🟠 Identity & Access Management | 25/100 | needs_improvement | URGENT: Implement compensating controls immediately |
Overall Grade: D (31/100)
Critical Security Gaps
| Gap | Severity | Business Impact | Recommendation |
|---|---|---|---|
| 🟡 No public security documentation or audit reports | MEDIUM | 40-80 hours of security assessment overhead | Request security audit reports (SOC 2, pen tests) and security whitepaper |
Total Gaps Identified: 1 | Critical/High Priority: 0
Compliance Status
| Framework | Status | Priority |
|---|---|---|
| SOC 2 | ❌ Missing | High Priority |
| ISO 27001 | ❌ Missing | High Priority |
| GDPR | ❌ Missing | High Priority |
| HIPAA | ❓ Unknown | Verify Status |
| PCI DSS | ❓ Unknown | Verify Status |
Warning: No compliance certifications verified. Extensive due diligence required.
Operational Excellence
| Metric | Status | Details |
|---|---|---|
| Status Page | ❌ Not Found | N/A |
| Documentation Quality | ❌ 0/10 | No SDKs |
| SLA Commitment | ❌ None | No public SLA |
| API Versioning | ⚠️ None | No version control |
| Support Channels | ℹ️ 0 channels |
Operational Facts Extracted: 2 data points from operational_maturity enrichment
Integration Requirements
| Aspect | Details | Notes |
|---|---|---|
| Setup Time | 3-5 days (manual setup required) | Estimated deployment timeline |
| Known Issues | Manual user provisioning may be required, Limited API automation capabilities, No automated user lifecycle management, Additional security controls needed | Implementation considerations |
⚠️ Inherent Risk Consideration
Data Sensitivity: This application stores sensitive data:
Risk Level: LOW - Contains
Compliance & Certifications
API Intelligence
Transparency indicators showing API availability and access requirements for Zillow.
API Intelligence
API intelligence structure found but no operations extracted. May require manual review.
Incomplete API Intelligence
Our automated extraction found API documentation but couldn't extract specific operations. This may require manual review or vendor assistance.
View Vendor DocumentationAI-Powered Stakeholder Decision Analysis
LLM-generated security perspectives tailored to CISO, CFO, CTO, and Legal stakeholder needs. All analysis is grounded in verified API data with zero fabrication.
CISO
This platform shows mixed security maturity with notable gaps requiring immediate attention. Zillow's partial security implementation presents meaningful deployment risks that demand comprehensive risk mitigation strategies.
Critical Security Gaps Identified
The most concerning finding is the complete absence of essential security controls across seven critical security dimensions. Zero scores in encryption, compliance, breach intelligence, infrastructure, application security, threat detection, and vendor risk management indicate a severe lack of baseline security capabilities. This comprehensive control gap exposes enterprise data to significant unauthorized access risks, regulatory compliance violations, and potential data exfiltration scenarios.
Identity and access management capabilities score 45/100, representing below-threshold performance for enterprise deployment. While basic authentication mechanisms appear functional, this score suggests inadequate multi-factor authentication enforcement, insufficient privilege management controls, and potentially weak session management practices. For a real estate platform handling sensitive financial and personal data, these identity weaknesses create substantial attack vectors.
The absence of critical compliance certifications (SOC 2, ISO 27001, GDPR, HIPAA) presents immediate regulatory risk. Enterprise organizations in regulated industries face potential compliance violations when deploying vendors without appropriate security attestations. This certification gap indicates insufficient security governance, inadequate audit controls, and potential legal exposure during regulatory examinations.
CISO Recommendation
Not recommended for production deployment without extensive compensating controls. If business requirements mandate deployment, implement network-level encryption, enhanced monitoring through SIEM integration, and strict data classification protocols. Require vendor security roadmap with specific remediation timelines for missing controls. Consider this platform only for non-sensitive use cases with air-gapped data handling until security maturity significantly improves.
Security Posture & Operational Capabilities
Comprehensive assessment of Zillow's security posture, operational maturity, authentication capabilities, security automation APIs, and breach intelligence.
Operational Data Not Yet Assessed
We haven't collected operational maturity data for Zillow yet.
Frequently Asked Questions
Common questions about Zillow
Zillow's security posture reveals significant vulnerabilities, with an overall security score of 31/100 and a corresponding "D" grade. Critical security dimensions like Identity & Access Management and API Security both score just 25-30/100, indicating substantial room for improvement. The platform demonstrates weaknesses across multiple security domains, including infrastructure and data protection, which also hover around 30/100.
Despite these challenges, Zillow exhibits strength in breach history and vulnerability management. Its vulnerability management score reaches 85/100, and breach history shows a perfect 100/100 score, suggesting robust historical incident handling. However, the incident response capability sits at a moderate 60/100, further highlighting inconsistent security practices.
Security professionals evaluating Zillow should carefully review its security posture, focusing on enhancing access controls, API security, and infrastructure protection. See the Security Dimensions section for a comprehensive security assessment breakdown.
Source: Search insights from Google, Bing
Zillow's security assessment reveals significant challenges across multiple security dimensions. With an overall security score of 31/100 and a D grade, the platform demonstrates critical areas needing substantial improvement. Identity and Access Management emerges as the most concerning dimension, scoring only 25/100 and indicating substantial vulnerability risks. API Security, Infrastructure Security, and Data Protection each score a minimal 30/100, signaling systemic security weaknesses that could expose user data and system integrity.
The platform's security landscape isn't entirely bleak. Vulnerability Management shows resilience with an 85/100 score, and Breach History receives a perfect 100/100 rating, suggesting effective historical incident containment. However, the Incident Response capability at 60/100 indicates potential delays in addressing emerging security threats.
Security decision-makers should carefully review the Security Dimensions section for a comprehensive understanding of Zillow's security posture and potential mitigation strategies.
Source: Search insights from Google, Bing
Zillow's security posture presents significant concerns for financial data protection. With an overall security score of 31/100 and a D grade, the platform demonstrates substantial vulnerabilities across critical security dimensions. Identity and Access Management scores particularly low at 25/100, indicating potential risks in user authentication and account protection. API and infrastructure security hover around 30/100, suggesting weak safeguards for data transmission and system architecture. While the platform shows strong performance in breach history (scoring 100/100) and vulnerability management (85/100), these isolated strengths cannot compensate for widespread security weaknesses. Financial professionals and real estate professionals should exercise extreme caution when handling sensitive data on Zillow. Comprehensive security reviews, multi-factor authentication, and limiting data exposure are recommended. See the Security Dimensions section for a detailed breakdown of Zillow's security assessment and specific risk areas.
Source: Search insights from Google, Bing
Compare with Alternatives
How does Zillow stack up against similar applications in Real Estate & Property? Click column headers to sort by different criteria.
| Application | Overall ScoreScore↓ | Grade | AI Security 🤖AI 🤖⇅ | Action |
|---|---|---|---|---|
48/100🏆 | C+ | N/A | View ProfileView | |
44/100 | C | N/A | View ProfileView | |
38/100 | D+ | N/A | View ProfileView | |
32/100 | D | N/A | View ProfileView | |
ZillowCurrent | 31/100 | D | N/A | |
28/100 | F | N/A | View ProfileView | |
22/100 | F | N/A | View ProfileView |
Security Comparison Insight
6 alternative(s) have higher overall security scores. Review the comparison to understand security tradeoffs for your specific requirements.