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CoStar Group

CoStar Group Vendor Cyber Rating & Cyber Score

costargroup.com
in
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ISO 27001
SOC 2 Type 1
SOC 2 Type 2
PCI DSS
HIPAA
GDPR

CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; Homes.com, the fastest-growing residential real estate marketplace; and Domain, one of Australia’s leading property marketplaces. CoStar Group’s


CoStar Group A.I CyberSecurity Scoring

Incident Details
CoStar Group
Company Information
Website:http://www.costargroup.com
Employees number:11,942
Number of followers:272,380
NAICS:
Industry Type:Real Estate
Homepage:costargroup.com
Cyber Premium EstimationGet Supply Chain
CoStar Group Risk Score (AI oriented)
Between 750 and 799
logo
CoStar GroupReal Estate
Updated:
01/04/2026
793/1000
Fair
Baa
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
✖ Insurance prefers TPRM score to calculate premium
CoStar Group Global Score (TPRM)
xxxx
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CoStar GroupReal Estate
•••
Score locked
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Vulnerabilities
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Findings

CoStar Group
CoStar GroupFair
Current Score
793Baa (FAIR)
01000
0 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
AUGUST 2026
787Before Incident
JULY 2026
786Before Incident
JUNE 2026
789Before Incident
MAY 2026
790Before Incident
APRIL 2026
790Before Incident
MARCH 2026
790Before Incident
FEBRUARY 2026
790Before Incident
JANUARY 2026
790Before Incident
DECEMBER 2025
804Before Incident
NOVEMBER 2025
804Before Incident
OCTOBER 2025
804Before Incident
SEPTEMBER 2025
804Before Incident

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