Comparison Overview

CoStar Group

VS

Greystar

CoStar Group

1201 Wilson Blvd, Arlington, Virginia, 22209, US
Last Update: 2025-12-09
View Profile
Between 800 and 849
http://www.costargroup.com

Since 1986, our work has kept the customer at the center of all we do. Clients, brokers, business buyers and sellers, and people looking for their next place to live depend on our information to make informed business decisions and plans for their future. Named to the NASDAQ 100 Index and S&P 500 Index for our leadership in real estate and technology, we are the industry standard because we’ve created, refined, and perfected a language that an entire industry trusts. CoStar Group has been recognized on numerous lists, including Forbes’ 2025 America’s Best Large Employers and Richmond Times-Dispatch's 2024 Top Workplaces.

NAICS: None
NAICS Definition: Others
Employees: 8,897
Subsidiaries: 8
12-month incidents
0
Known data breaches
0
Attack type number
0
View Profile

Greystar

465 Meeting St, Charleston, South Carolina, 29403, US
Last Update: 2025-12-09
Between 750 and 799
https://www.greystar.com

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, regional and local levels. This unique approach and our commitment to hiring the best professionals have resulted in record growth, making us one of the most respected and trusted global real estate companies. Because our vertically integrated business model includes both investment and service-oriented businesses, we’re able to maintain a constant presence in local markets and create value in all phases of the real estate cycle. Our international platform provides economies of scale, financial sophistication, institutional quality reporting and tremendous capital relationships, while our city offices provide local market expertise and execution. Supported by a global team of 20,000+ employees, Greystar’s experienced and cross-functional executive team boasts on average over 23 years of industry experience and provides a diverse perspective throughout the investment process. Over the years, Greystar has learned what’s important to people when it comes to a place to call home. That’s why we continually strive to provide beautiful living environments and innovative services that enhance the living experience. We take great pride in knowing that our homes are inviting places for residents to celebrate life’s important moments. Privacy Policy: https://www.greystar.com/privacy DMCA: https://www.greystar.com/terms-of-use#Copyright%20Infringement%20Policy

NAICS: None
NAICS Definition: Others
Employees: 16,976
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/costar-group.jpeg
CoStar Group
—
ISO 27001
ISO 27001 certification not verified
Not verified
—
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
—
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
—
GDPR
GDPR certification not verified
Not verified
—
PCI DSS
PCI DSS certification not verified
Not verified
—
HIPAA
HIPAA certification not verified
Not verified
https://images.rankiteo.com/companyimages/greystar.jpeg
Greystar
—
ISO 27001
ISO 27001 certification not verified
Not verified
—
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
—
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
—
GDPR
GDPR certification not verified
Not verified
—
PCI DSS
PCI DSS certification not verified
Not verified
—
HIPAA
HIPAA certification not verified
Not verified
Compliance Summary
CoStar Group
100%
Compliance Rate
0/4 Standards Verified
Greystar
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Real Estate Industry Average (This Year)

No incidents recorded for CoStar Group in 2025.

Incidents vs Real Estate Industry Average (This Year)

No incidents recorded for Greystar in 2025.

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

CoStar Group cyber incidents detection timeline including parent company and subsidiaries

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

Greystar cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/costar-group.jpeg
CoStar Group
Incidents

No Incident

https://images.rankiteo.com/companyimages/greystar.jpeg
Greystar
Incidents

No Incident

FAQ

CoStar Group company demonstrates a stronger AI Cybersecurity Score compared to Greystar company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Historically, Greystar company has disclosed a higher number of cyber incidents compared to CoStar Group company.

In the current year, Greystar company and CoStar Group company have not reported any cyber incidents.

Neither Greystar company nor CoStar Group company has reported experiencing a ransomware attack publicly.

Neither Greystar company nor CoStar Group company has reported experiencing a data breach publicly.

Neither Greystar company nor CoStar Group company has reported experiencing targeted cyberattacks publicly.

Neither CoStar Group company nor Greystar company has reported experiencing or disclosing vulnerabilities publicly.

Neither CoStar Group nor Greystar holds any compliance certifications.

Neither company holds any compliance certifications.

CoStar Group company has more subsidiaries worldwide compared to Greystar company.

Greystar company employs more people globally than CoStar Group company, reflecting its scale as a Real Estate.

Neither CoStar Group nor Greystar holds SOC 2 Type 1 certification.

Neither CoStar Group nor Greystar holds SOC 2 Type 2 certification.

Neither CoStar Group nor Greystar holds ISO 27001 certification.

Neither CoStar Group nor Greystar holds PCI DSS certification.

Neither CoStar Group nor Greystar holds HIPAA certification.

Neither CoStar Group nor Greystar holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

A weakness has been identified in itsourcecode Online Pet Shop Management System 1.0. This vulnerability affects unknown code of the file /pet1/addcnp.php. This manipulation of the argument cnpname causes sql injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.

Published
Date
2025-12-13
Updated
Date
2025-12-13
Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
Description

A security flaw has been discovered in Tenda AX9 22.03.01.46. This affects the function image_check of the component httpd. The manipulation results in use of weak hash. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be exploited.

Published
Date
2025-12-13
Updated
Date
2025-12-13
Risk Information
cvss2
Base: 2.6
Severity: HIGH
AV:N/AC:H/Au:N/C:N/I:P/A:N
cvss3
Base: 3.7
Severity: HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
cvss4
Base: 6.3
Severity: HIGH
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
Description

A weakness has been identified in code-projects Student File Management System 1.0. This issue affects some unknown processing of the file /admin/update_student.php. This manipulation of the argument stud_id causes sql injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited.

Published
Date
2025-12-13
Updated
Date
2025-12-13
Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
Description

A security flaw has been discovered in code-projects Student File Management System 1.0. This vulnerability affects unknown code of the file /admin/save_user.php. The manipulation of the argument firstname results in sql injection. The attack can be executed remotely. The exploit has been released to the public and may be exploited.

Published
Date
2025-12-13
Updated
Date
2025-12-13
Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
Description

A vulnerability was identified in code-projects Student File Management System 1.0. This affects an unknown part of the file /admin/update_user.php. The manipulation of the argument user_id leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Published
Date
2025-12-13
Updated
Date
2025-12-13
Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References