Skip to main content
Zillow logo

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.

Data: 4/8(50%)
SECURITY VERIFIED • SAASPOSTURE • JAN 2026
D
Bottom 30%
Zillow logoZillow
SaaS Posture Assessment

9-Dimension Security Framework

Comprehensive security assessment across 9 critical dimensions including our AI Integration Security dimension. Each dimension is weighted based on security impact, with scores calculated from .
31
Overall Score
Weighted average across all dimensions
D
Security Grade
Below Avg
49% confidence

Identity & Access Management

F
Score:0
Weight:33%
Grade:F (Critical)

API Security

D
Score:0
Weight:14%
Grade:D (Below Avg)

AI Integration Security

NEW
N/A
Score:0
Weight:12%
Grade:N/A

Infrastructure Security

D
Score:0
Weight:14%
Grade:D (Below Avg)

Data Protection

D
Score:0
Weight:10%
Grade:D (Below Avg)

Vulnerability Management

A+
Score:0
Weight:3%
Grade:A+ (Top 5%)

Breach History

A+
Score:0
Weight:1%
Grade:A+ (Top 5%)

Incident Response

A
Score:0
Weight:1%
Grade:A (Top 10%)
🤖

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

50%
complete
Identity & Access
Available
Compliance
Missing
API Security
Available
Infrastructure
Available
Data Protection
Missing
Vulnerability Mgmt
Available
Incident Response
Missing
Breach History
Missing

Score based on 4 of 8 categories. Missing categories could not be assessed due to lack of public data or vendor restrictions.

Evaluation Friction

UNKNOWN
Estimated: Unknown
0% public documentation accessibility

Evaluation friction estimates how long it typically takes to fully evaluate this vendor's security practices, from initial contact to complete assessment.

13 data sources successful

Transparency indicators show data completeness and vendor accessibility

Comprehensive Security Analysis

In-depth assessment with detailed recommendations

Security Analysis

Executive Summary

MetricValueAssessment
Security GradeDNeeds Improvement
Risk LevelHighNot recommended
Enterprise Readiness42%Gaps Exist
Critical Gaps0None

Security Assessment

CategoryScoreStatusAction Required
🟢 Breach History100/100excellentMaintain current controls
🟡 Vulnerability Management85/100goodMaintain current controls
🟠 Incident Response60/100needs_improvementMonitor and improve gradually
🟠 API Security30/100needs_improvementAdd rate limiting and authentication
🟠 Infrastructure Security30/100needs_improvementReview and enhance controls
🟠 Data Protection30/100needs_improvementImplement encryption at rest, TLS/HTTPS, and 1 more
🟠 Identity & Access Management25/100needs_improvementURGENT: Implement compensating controls immediately

Overall Grade: D (31/100)

Critical Security Gaps

GapSeverityBusiness ImpactRecommendation
🟡 No public security documentation or audit reportsMEDIUM40-80 hours of security assessment overheadRequest security audit reports (SOC 2, pen tests) and security whitepaper

Total Gaps Identified: 1 | Critical/High Priority: 0

Compliance Status

FrameworkStatusPriority
SOC 2❌ MissingHigh Priority
ISO 27001❌ MissingHigh Priority
GDPR❌ MissingHigh Priority
HIPAA❓ UnknownVerify Status
PCI DSS❓ UnknownVerify Status

Warning: No compliance certifications verified. Extensive due diligence required.

Operational Excellence

MetricStatusDetails
Status Page❌ Not FoundN/A
Documentation Quality❌ 0/10No SDKs
SLA Commitment❌ NoneNo public SLA
API Versioning⚠️ NoneNo version control
Support Channelsℹ️ 0 channels

Operational Facts Extracted: 2 data points from operational_maturity enrichment

Integration Requirements

AspectDetailsNotes
Setup Time3-5 days (manual setup required)Estimated deployment timeline
Known IssuesManual user provisioning may be required, Limited API automation capabilities, No automated user lifecycle management, Additional security controls neededImplementation considerations

⚠️ Inherent Risk Consideration

Data Sensitivity: This application stores sensitive data:

Risk Level: LOW - Contains

Compliance & Certifications

0
Active
0
Pending
6
Not Certified

API Intelligence

Transparency indicators showing API availability and access requirements for Zillow.

API Intelligence

Incomplete

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 Documentation

AI-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.

AI-Powered Analysis
Claude Sonnet 41,062 wordsZero fabrication

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
Score
Grade
AI 🤖
Action
48🏆
C+N/AView
44
CN/AView
38
D+N/AView
32
DN/AView
ZillowCurrent
31
DN/A
28
FN/AView
22
FN/AView
💡

Security Comparison Insight

6 alternative(s) have higher overall security scores. Review the comparison to understand security tradeoffs for your specific requirements.