What is the official website of CoStar Group ?

The official website of CoStar Group is http://www.costargroup.com.

What is CoStar Group's cybersecurity risk score?

CoStar Group has an AI-generated cybersecurity risk score of 788 out of 1000, indicating a Fair security posture according to Rankiteo's assessment.

How many security incidents has CoStar Group experienced?

According to Rankiteo, CoStar Group currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.

Has CoStar Group been affected by any supply chain cyber incidents ?

According to Rankiteo, CoStar Group has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.

Does CoStar Group have SOC 2 Type 1 certification ?

According to Rankiteo, CoStar Group is not certified under SOC 2 Type 1.

Does CoStar Group have SOC 2 Type 2 certification ?

According to Rankiteo, CoStar Group does not hold a SOC 2 Type 2 certification.

Does CoStar Group comply with GDPR ?

According to Rankiteo, CoStar Group is not listed as GDPR compliant.

Does CoStar Group have PCI DSS certification ?

According to Rankiteo, CoStar Group does not currently maintain PCI DSS compliance.

Does CoStar Group comply with HIPAA ?

According to Rankiteo, CoStar Group is not compliant with HIPAA regulations.

Does CoStar Group have ISO 27001 certification ?

According to Rankiteo,CoStar Group is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.

Which industry does CoStar Group operate in ?

CoStar Group operates primarily in the Real Estate industry.

How many employees does CoStar Group have ?

CoStar Group employs approximately 11,942 people worldwide.

Does CoStar Group own any subsidiaries ?

CoStar Group presently has no subsidiaries across any sectors.

How many LinkedIn followers does CoStar Group have ?

CoStar Group's official LinkedIn profile has approximately 272,380 followers.

Does CoStar Group have a Crunchbase profile ?

No, CoStar Group does not have a profile on Crunchbase.

Does CoStar Group have a LinkedIn profile ?

Yes, CoStar Group maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/costar-group.

How many cybersecurity incidents has CoStar Group experienced ?

As of October 9, 2026, Rankiteo reports that CoStar Group has not experienced any cybersecurity incidents.

How many peer or competitor companies does CoStar Group have ?

CoStar Group has an estimated 30,362 peer or competitor companies worldwide.

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CoStar Group

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788

/1000

Fair

813

/1000

Good

CoStar Group Vendor Cyber Rating & Cyber Score

costargroup.com

Add Your Compliance Badge

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

CoStar Group CyberSecurity News & History

Past Incidents

Attack Types

Entity

Type

Severity

Impact

Seen

Blog Details

Supply Chain Source

Incident Details

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No data available

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A.I.

CoStar Group Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Actual

Prediction

Incident Predictions locked

Access Monitoring Plan

A.I Risk Score Likelihood 3 - 6 - 9 months

Actual

Prediction A

Prediction B

Prediction C

Prediction D

A.I. Risk Score Predictions locked

Access Monitoring Plan

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Underwriter Stats for CoStar Group

Incidents vs Real Estate Industry Avg (This Year)

No incidents recorded for CoStar Group in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for CoStar Group in 2026.

Incident Types CoStar Group vs Real Estate Industry Avg (This Year)

No incidents recorded for CoStar Group in 2026.

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

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SUBSIDIARY

CoStar Group Subsidiaries

Parent Company

CoStar Group

Real Estate

Website: http://www.costargroup.com

Company Size: 5,001-10,000 employees

No subsidiary data available for this company.

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CoStar Group Similar Companies

Compass

cb compass.com

Compass is a real estate technology company with a powerful end-to-end platform that supports the entire buying and selling workflow. We deliver an incomparable experience to both agents and their clients all in service of the Compass mission: to help everyone find their place in the world. Founded in 2012 by Ori Allon and Robert Reffkin, Compass operates in 22+ regions across the United States including New York, Los Angeles and Orange County, Chicago, San Francisco, Boston, Washington D.C., South Florida, The Hamptons, Santa Barbara & Montecito, San Diego, Seattle & Eastside, Philadelphia, Connecticut, Westchester, Aspen, Boulder, Denver, Atlanta, Austin & Central Texas, Dallas-Fort Worth, Houston, Nashville, and Lake Tahoe. Learn more and find your place at www.compass.com and www.compass.com/careers. Compass only reaches out to applicants from a @compass.com domain and does not prompt applicants to download software or files as part of its application process.

SM Supermalls

smsupermalls.com

The SM Group of companies stands today as an institution, a store, a mall, a bank, a home, a resort, a hotel, and a place to see and experience with the family. One of the core business areas of the SM Group is the Shopping Center Management Corporation, generally referred to as SM Supermalls. The company is owned by SM Prime Holdings, Inc., a publicly-listed company and one of the largest integrated property developers in Southeast Asia. It operates 87 malls in the Philippines and 8 malls in China. SM Supermalls provides family fun experiences as it partners with the best-loved brands. The company has also become an engine for the country’s economic growth because wherever we go, new jobs are created. Careers are given a jumpstart, small businesses grow, real estate values go up, and we see an immediate acceleration of retail activity in the area. The company continues to expand locally and internationally, creating more experiences and providing opportunities for the people and the community. Visit www.smsupermalls.com for more information. #EverythingsHereAtSM #SMLIFE

Greystar

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 28,000+ 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

Keller Williams Realty, LLC

kw.com

Austin, Texas-based Keller Williams, the world’s largest real estate franchise by agent count, has more than 1,100 offices and 176,000 agents. The franchise is also No. 1 in units and sales volume in the United States. Since 1983, the company has cultivated an agent-centric, technology-driven, and education-based culture that rewards agents as stakeholders. For more information, visit headquarters.kw.com.

Lopes Consultoria de Imóveis

lopes.com.br

A GARANTIA DE SER LOPES A Lopes é a maior empresa de soluções integradas de intermediação, consultoria e promoção de financiamentos de imóveis do Brasil. Está presente em 10 estados - São Paulo, Rio de Janeiro, Minas Gerais, Espírito Santo, Rio Grande do Sul, Paraná, Santa Catarina, Bahia, Pernambuco e Ceará - além do Distrito Federal. Líder em intermediação de venda e compra de lançamentos imobiliários, a Lopes atua também nos segmentos de imóveis usados, com a bandeira Pronto! e financiamento imobiliário, com a CrediPronto! Além disso, possui uma empresa especializada em comercialização de imóveis de até 200 mil reais: a HabitCasa. Sua missão é atender com excelência e segurança todos os clientes, pessoas ou empresas, atingindo e superando as expectativas de cada um deles. Dessa forma, a Lopes garante a qualidade do seu serviço e a satisfação de compradores, incorporadores e acionistas, além de atratividade aos corretores de imóveis parceiros ou associados. Símbolo de inovação e vanguardismo no mercado imobiliário, a Lopes trabalha com a filosofia de que nenhuma empresa pode se considerar grande, bem-sucedida ou experiente o bastante quando o assunto é a busca de aprendizado e aprimoramento. Por isso, usa os seus mais de 70 anos de experiência como lastro para a constante superação de novos desafios.

Colliers

ow.ly

Colliers (NASDAQ, TSX: CIGI) is a global diversified professional services and investment management company operating through three industry-leading businesses: Commercial Real Estate, Engineering and Investment Management. With greater than a 30-year track record of consistent growth and strong recurring cash flows, we scale complementary, high-value businesses that provide essential services across the full asset lifecycle. Our unique partnership philosophy empowers exceptional leaders, preserves our entrepreneurial culture, and ensures meaningful inside ownership – driving strong alignment and sustained value creation for our shareholders. With $6 billion in annual revenues, 28,000 professionals, and $110 billion in assets under management, Colliers is committed to accelerating the success of our clients, investors, and people worldwide. Learn more at corporate.colliers.com.

Anywhere Real Estate Inc.

anywhere.re

Anywhere Real Estate Inc. (NYSE: HOUS) is moving the real estate industry to what's next. A leader of integrated residential real estate services, Anywhere includes franchise, brokerage, relocation, and title and settlement businesses, as well as mortgage and title insurance underwriter joint ventures, supporting approximately 1.2 million home transactions in 2022. The diverse Anywhere brand portfolio includes some of the most recognized names in real estate: Better Homes and Gardens® Real Estate, CENTURY 21®, Coldwell Banker®, Coldwell Banker Commercial®, Corcoran®, ERA®, and Sotheby's International Realty®. Using innovative technology, data and marketing products, high-quality lead generation programs, and best-in-class learning and support services, Anywhere fuels the productivity of its approximately 190,300 independent sales agents in the U.S. and approximately 140,100 independent sales agents in 117 other countries and territories, helping them build stronger businesses and best serve today's consumers. Recognized for twelve consecutive years as one of the World's Most Ethical Companies, Anywhere has also been designated a Great Place to Work five years in a row, honored on the Forbes list of World's Best Employers three years in a row, named one of America's Most Innovative Companies 2023 by Fortune, and most recently, featured on the inaugural TIME World's Best Companies list.

Zillow

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Having a place to call your own changes everything. It’s where life happens, where stability grows and possibility begins. At Zillow, we’re transforming real estate so more people can take their next step with confidence and ease. We bring clarity to the process and progress to an industry ready for change, working alongside the people who make real estate work every day. With Cloud HQ, our distributed-first way of working, you can do meaningful work from wherever you work best. We’re always looking for smart, passionate people to help reimagine how people get home. Join us. https://www.zillow.com/careers/

Shimao Group

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NEWS

CoStar Group CyberSecurity News

Latest updates, reports, and threat intel affecting the global network.

March 25, 2026 12:37 PM

News | Cybersecurity startup lease of Silicon Valley office park signals optimism at a crucial moment

Lease of the Year for the South Bay. Cybersecurity firm Zscaler subleased space from Airbnb at Building 1 of 4301 Great America Parkway. (CoStar).

Read Article

March 04, 2026 08:00 AM

Jim Cramer on CoStar Group: “Another Victim of AI That I Am Very Concerned About”

CoStar Group, Inc. (NASDAQ:CSGP) is one of the S&P 500 stocks that Jim Cramer shared his take on. Cramer highlighted the AI fears around the...

Read Article

March 03, 2026 08:00 AM

News | Colliers expands New York team; Newmark hires three Dallas directors; JLL adds healthcare principal

Corey Horowitz joined Colliers as a senior vice president in its New York office. The firm said Horowitz will focus on office leasing and...

Read Article

February 21, 2026 08:00 AM

Jefferies Turns Bullish on CoStar Group (CSGP), Citing Strong EBITDA Growth Outlook

CoStar Group, Inc. (NASDAQ:CSGP) is included among the 14 Best Real Estate Stocks to Buy According to Hedge Funds. On February 20, Jefferies...

Read Article

February 18, 2026 08:00 AM

News | 5 things to know for Feb. 18

Today's Headlines: Japan hotel chain Washington hit by ransomware attack; Scandic sees modest growth, no change in Dalata Hotels integration...

Read Article

February 17, 2026 08:00 AM

Little Italy office tower in foreclosure

610 W. Ash St. lender is also suing the building owner for full payment of a $30-million loan balance.

Read Article

February 08, 2026 08:00 AM

Sales force Growth Fuels Bullish Views on CoStar Group (CSGP)

CoStar Group (NASDAQ:CSGP) is one of the 10 best real estate services stocks to buy according to hedge funds. On January 27, Jake Fuller...

Read Article

February 03, 2026 08:00 AM

Troy cybersecurity software firm acquires Ohio company

Logicalis, a cybersecurity services provider in Troy, has acquired an Ohio-based security company. Maple Woods Enterprises is a long-term...

Read Article

December 31, 2025 08:00 AM

Smart risk in a bull market - 7 stocks to watch for in 2026: Jon Erlichman

After a big run for growth stocks, some investors may feel guilty for wanting more. In a bull market, that discomfort can tempt investors to...

Read Article

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-97032

SUMMARY

HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: )

Impact Score

Exploitability

REFERENCES

CVE-2026-97031

SUMMARY

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: )

Impact Score

Exploitability

REFERENCES

CVE-2026-97030

SUMMARY

A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now ensure that valid keyword uses are escaped and non-keyword uses are not escaped.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: )

Impact Score

Exploitability

REFERENCES

CVE-2026-96207

SUMMARY

Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: 10)

cvss3

Base Score: 10.0

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Impact Score

5.8

Exploitability

3.9

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96207

CVE-2026-94510

SUMMARY

Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: 9.9)

cvss3

Base Score: 9.9

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L

Impact Score

5.3

Exploitability

3.9

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-94510

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Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.

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Network SecurityIdentify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.

SBOM (Software Bill of Materials)Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.

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CoStar Group Vendor Cyber Rating & Cyber Score

CoStar Group A.I CyberSecurity Scoring

CoStar Group CyberSecurity News & History

CoStar Group Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Incident Predictions locked

A.I Risk Score Likelihood 3 - 6 - 9 months

A.I. Risk Score Predictions locked

Underwriter Stats for CoStar Group

Incidents vs Real Estate Industry Avg (This Year)

Incidents vs All-Companies Average (This Year)

Incident Types CoStar Group vs Real Estate Industry Avg (This Year)

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

CoStar Group Subsidiaries

Parent Company

CoStar Group

CoStar Group Similar Companies

Compass

SM Supermalls

Greystar

Keller Williams Realty, LLC

Lopes Consultoria de Imóveis

Colliers

Anywhere Real Estate Inc.

Zillow

Shimao Group

CoStar Group CyberSecurity News

News | Cybersecurity startup lease of Silicon Valley office park signals optimism at a crucial moment

Jim Cramer on CoStar Group: “Another Victim of AI That I Am Very Concerned About”

News | Colliers expands New York team; Newmark hires three Dallas directors; JLL adds healthcare principal

Jefferies Turns Bullish on CoStar Group (CSGP), Citing Strong EBITDA Growth Outlook

News | 5 things to know for Feb. 18

Little Italy office tower in foreclosure

Sales force Growth Fuels Bullish Views on CoStar Group (CSGP)

Troy cybersecurity software firm acquires Ohio company

Smart risk in a bull market - 7 stocks to watch for in 2026: Jon Erlichman

Global CVEs (Not Company-Specific)

Access Data Using Our API

What Do We Measure ?

These are some of the factors we use to calculate the overall score:

Rankiteo

CoStar Group CyberSecurity News & History

CoStar Group Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Incident Predictions locked

A.I Risk Score Likelihood 3 - 6 - 9 months

A.I. Risk Score Predictions locked

Underwriter Stats for CoStar Group

Incidents vs Real Estate Industry Avg (This Year)

Incidents vs All-Companies Average (This Year)

Incident Types CoStar Group vs Real Estate Industry Avg (This Year)

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

CoStar Group Subsidiaries

Parent Company

CoStar Group

CoStar Group Similar Companies

Compass

SM Supermalls

Greystar

Keller Williams Realty, LLC

Lopes Consultoria de Imóveis

Colliers

Anywhere Real Estate Inc.

Zillow

Shimao Group

CoStar Group CyberSecurity News

News | Cybersecurity startup lease of Silicon Valley office park signals optimism at a crucial moment

Jim Cramer on CoStar Group: “Another Victim of AI That I Am Very Concerned About”

News | Colliers expands New York team; Newmark hires three Dallas directors; JLL adds healthcare principal

Jefferies Turns Bullish on CoStar Group (CSGP), Citing Strong EBITDA Growth Outlook

News | 5 things to know for Feb. 18

Little Italy office tower in foreclosure

Sales force Growth Fuels Bullish Views on CoStar Group (CSGP)

Troy cybersecurity software firm acquires Ohio company

Smart risk in a bull market - 7 stocks to watch for in 2026: Jon Erlichman

Global CVEs (Not Company-Specific)

Access Data Using Our API

What Do We Measure ?