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Comparison Overview

GreystarGreystar
VS
CoStar GroupCoStar Group
Greystar

Greystar

465 Meeting St, Suite 500, Charleston, South Carolina, US, 29403

Last Update: 02/04/2026

View Profile
Between 700 and 749
https://www.greystar.com
709/1000Moderate

Founded in 1993, Greystar provides world-class service in the residential rental housing industry. Our innovative vertically integrated business model integrates the management, development and investment disciplines of the rental housing industry on international, regi...

NAICS:N/A
NAICS Definition:Others
Employees:18,572
Subsidiaries:0
12-month incidents
0
Known data breaches
0
Attack type number
1
CoStar Group

CoStar Group

1201 Wilson Blvd, Arlington, Virginia, US, 22209

Last Update: 01/04/2026

View Profile
Between 750 and 799
http://www.costargroup.com
793/1000Fair

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 prop...

NAICS:N/A
NAICS Definition:Others
Employees:11,942
Subsidiaries:0
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Ranges Comparison

Based On Specific Ai Models Category
Greystar

Greystar

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA
CoStar Group

CoStar Group

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA

Benchmark & Cyber Underwriting Signals

Incidents vs Real Estate Industry Avg (This Year)

No incidents recorded for Greystar in 2026.

Incidents

Incidents vs Real Estate Industry Avg (This Year)

No incidents recorded for CoStar Group in 2026.

Incidents

Incident History - Greystar (X = Date, Y = Severity)

Greystar cyber incidents detection timeline including parent company and subsidiaries.

R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

Incident History - CoStar Group (X = Date, Y = Severity)

CoStar Group cyber incidents detection timeline including parent company and subsidiaries.

No timeline data available
R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

Notable Incidents

Last Cyber / HR Incidents / Global...
Greystar

Greystar

Incidents
🔒 Incident : Ransomware
GRETHE1773872875
CoStar Group

CoStar Group

Incidents
No explicit notable incidents reported.

FAQ

Between Greystar company and CoStar Group company, which one has the best AI Cybersecurity Score ?
Between Greystar company and CoStar Group company, which one has experienced more cyber incidents in the past ?
Between Greystar company and CoStar Group company, which one has experienced more cyber incidents this year ?
Between Greystar company and CoStar Group company, which one has experienced at least one ransomware attack ?
Between Greystar company and CoStar Group company, which one has experienced at least one data breach ?
Between Greystar company and CoStar Group company, which one has experienced at least one targeted cyberattack ?
Between Greystar company and CoStar Group company, which one has experienced at least one vulnerability ?
Between Greystar company and CoStar Group company, which one holds the most compliance certifications ?
Between Greystar company and CoStar Group company, which one holds the fewest compliance certifications ?
Between Greystar company and CoStar Group company, which one has the most subsidiaries ?
Between Greystar company and CoStar Group company, which one has the largest number of employees ?
Between Greystar and CoStar Group, which company holds both SOC 2 Type 1 certifications ?
Between Greystar and CoStar Group, which company holds both SOC 2 Type 2 certifications ?
Which company is ISO 27001 certified - Greystar or CoStar Group ?
Which company is PCI DSS compliant - Greystar or CoStar Group ?
Between Greystar and CoStar Group, which company complies with HIPAA regulations for healthcare data ?
Between Greystar and CoStar Group, which company complies with GDPR requirements ?

Latest Global CVEs

CVE-2026-15905
SUMMARY

Use after free in Aura in Google Chrome prior to 150.0.7871.128 allowed a local attacker to potentially exploit heap corruption via a malicious file. (Chromium security severity: High)

PUBLISHED
Date2026-07-20
UPDATED
Date2026-07-20
IMPACT SCORE
NA
EXPLOITABILITY
NA
CVE-2026-15904
SUMMARY

Use after free in Ozone in Google Chrome on Linux prior to 150.0.7871.128 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

PUBLISHED
Date2026-07-20
UPDATED
Date2026-07-20
IMPACT SCORE
NA
EXPLOITABILITY
NA
CVE-2026-15903
SUMMARY

Out of bounds read and write in V8 in Google Chrome prior to 150.0.7871.128 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

PUBLISHED
Date2026-07-20
UPDATED
Date2026-07-20
IMPACT SCORE
NA
EXPLOITABILITY
NA
CVE-2026-15902
SUMMARY

Use after free in Cast in Google Chrome prior to 150.0.7871.128 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

PUBLISHED
Date2026-07-20
UPDATED
Date2026-07-20
IMPACT SCORE
NA
EXPLOITABILITY
NA
CVE-2026-15901
SUMMARY

Use after free in Network in Google Chrome prior to 150.0.7871.128 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

PUBLISHED
Date2026-07-20
UPDATED
Date2026-07-20
IMPACT SCORE
NA
EXPLOITABILITY
NA