Company Details
jw_marriott
15,169
270,347
7211
jwmarriott.com
0
JW _2903603
In-progress

JW Marriott Company CyberSecurity Posture
jwmarriott.comNo loud pretense. No excess formalities. Just understated elegance you’ll feel the moment you walk into one of over 80 worldwide destinations. JW Marriott is part of Marriott International’s luxury portfolio and consists of beautiful properties in gateway cities and distinctive resort locations in 28 countries around the world. These elegant hotels cater to today’s sophisticated, self-assured travelers, offering them the quiet luxury they seek in a warmly authentic, relaxed atmosphere lacking in pretense. JW Marriott properties artfully provide highly crafted, anticipatory experiences that are reflective of their locale so that their guests have the time to focus on what is most important to them.
Company Details
jw_marriott
15,169
270,347
7211
jwmarriott.com
0
JW _2903603
In-progress
Between 800 and 849

JW Marriott Global Score (TPRM)XXXX

Description: The California Office of the Attorney General reported on October 30, 2019, that Marriott International, Inc. experienced a data breach involving 1,552 California residents. The breach was caused by unauthorized access to information about certain associates through a vendor's network, compromising personal data including names, addresses, and Social Security numbers. Marriott has terminated its relationship with the vendor and is offering credit monitoring services.
Description: Hotel giant Marriott International suffered a data breach after an unknown threat actor breached one of its properties and stole 20GB of files. The hackers stole 20GB worth of documents containing non-sensitive internal business files and some credit card information. Marriott hired a third-party security firm to investigate the incident and notified the affected individuals.
Description: The California Office of the Attorney General disclosed a major **data breach** at **Marriott International, Inc.** on **November 30, 2018**, stemming from an unauthorized access to the **Starwood guest reservation database**. The breach, which began **on or before September 10, 2018**, exposed the records of approximately **500 million guests**, with **327 million individuals** having sensitive personal data compromised. This included **names, mailing addresses, email addresses, and encrypted payment card numbers**, though the encryption status of the latter was not confirmed to be broken. The incident originated from a vulnerability in Starwood’s systems, which Marriott had acquired in 2016, highlighting a failure in post-merger cybersecurity integration. The breach posed severe risks of **identity theft, financial fraud, and reputational damage**, given the scale and sensitivity of the exposed data. Regulatory investigations followed, with Marriott facing significant legal and financial repercussions, including fines under **GDPR** and other data protection laws. The incident underscored critical gaps in **third-party risk management** and the protection of customer data in large-scale corporate acquisitions.
Description: Marriott International Inc. faced a major data breach involving its Starwood-branded hotels, exposing the personal information of up to **383 million guests**. The breach, which led to consolidated litigation, included sensitive customer data such as names, addresses, passport numbers, and payment details. The city of Chicago filed claims against Marriott, but the case was dismissed with prejudice after a settlement was reached. The incident underscores the severe consequences of large-scale data leaks, particularly in the hospitality sector, where trust and data security are critical. The breach not only risked financial fraud and identity theft for affected guests but also damaged Marriott’s reputation, leading to legal repercussions and regulatory scrutiny. The scale of the exposure—affecting hundreds of millions—highlights the systemic vulnerabilities in handling customer data across global operations.
Description: Hotel giant Marriott International suffered a data breach after an unknown person gained access to information about certain Marriott associates by accessing the network of an outside vendor formerly used by Marriott. Marriott immediately confirmed that the vendor was taking appropriate to steps to investigate the incident. The vendor reported that it was working with a forensic firm and had notified law enforcement. This incident did not impact the security of Marriott’s internal HR systems or platforms. The information in the document received by this vendor that contains your information includes your name, address, and Social Security number. Marriott hired a third-party security firm to investigate the incident and notified the affected individuals.
Description: A third attack against the hotel chain, Marriott, has resulted in yet another data breach. This is the second time this year that data has been stolen from the hotel firm. An employee at the BWI Airport Marriott in Baltimore stated that about 20GB of data, including credit card numbers and PII of visitors and employees, had been stolen. The hacking organisation requested a ransom from Marriott to keep the data they had obtained from being released, but the money was not paid.


No incidents recorded for JW Marriott in 2025.
No incidents recorded for JW Marriott in 2025.
No incidents recorded for JW Marriott in 2025.
JW Marriott cyber incidents detection timeline including parent company and subsidiaries

No loud pretense. No excess formalities. Just understated elegance you’ll feel the moment you walk into one of over 80 worldwide destinations. JW Marriott is part of Marriott International’s luxury portfolio and consists of beautiful properties in gateway cities and distinctive resort locations in 28 countries around the world. These elegant hotels cater to today’s sophisticated, self-assured travelers, offering them the quiet luxury they seek in a warmly authentic, relaxed atmosphere lacking in pretense. JW Marriott properties artfully provide highly crafted, anticipatory experiences that are reflective of their locale so that their guests have the time to focus on what is most important to them.


The resorts and casinos of MGM Resorts International™ are some of the most famous in the world. Our 28 destinations are renowned for their winning combination of quality entertainment, luxurious facilities, and exceptional customer service. We are actively expanding our presence globally, with pot

Headquartered in Hong Kong SAR, the Shangri-La Group has grown from a single hotel business to a diverse and integrated global portfolio comprising quality real estate and investment properties, wellness and lifestyle facilities. Today, the Group owns, operates and manages 100+ hotels under our fami
Four Seasons Hotels and Resorts opened its first hotel in 1961, and since that time has been dedicated to perfecting the travel experience through continual innovation and the highest standards of hospitality. Currently operating more than 120 hotels and resorts, and more than 50 residential propert

Mandarin Oriental Hotel Group is the award-winning owner and operator of some of the world’s most luxurious hotels, resorts and residences. Having grown from its Asian roots into a global brand, the Group now operates 43 hotels, 12 residences and 23 exclusive homes in 26 countries and territories, w

IHG Hotels & Resorts [LON:IHG, NYSE:IHG (ADRs)] is a global hospitality company, with a purpose to provide True Hospitality for Good. With a family of 19 hotel brands and IHG One Rewards, one of the world's largest hotel loyalty programmes, IHG has over 6,300 open hotels in more than 100 countries,

Best Western Hotels & Resorts headquartered in Phoenix, Arizona, is a privately held hotel company within the BWH℠ Hotels global enterprise. With 19 brands and approximately 4,300 hotels in over 100 countries and territories worldwide*, BWH Hotels suits the needs of developers and guests in every ma
Hilton (NYSE: HLT) is a leading global hospitality company with a portfolio of 24 world-class brands comprising more than 8,400 properties and over 1.25 million rooms, in 140 countries and territories. Dedicated to fulfilling its founding vision to fill the earth with the light and warmth of hospita

SJM Resorts, S.A. ("SJM") is one of the six concessionaires in Macau, authorised by the Government of the Macau Special Administrative Region to operate casinos and gaming areas. SJM is also the only casino gaming concessionaire with its roots in Macau. SJM owns and operates the Grand Lisboa Palace
With over 500 properties worldwide, Marriott Hotels has reimagined hospitality to exceed the expectations of business, group, and leisure travelers. Marriott Hotels, Marriott’s flagship brand of quality-tier, full-service hotels and resorts, provides consistent, dependable and genuinely caring
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Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
The official website of JW Marriott is http://www.jwmarriott.com.
According to Rankiteo, JW Marriott’s AI-generated cybersecurity score is 802, reflecting their Good security posture.
According to Rankiteo, JW Marriott currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
According to Rankiteo, JW Marriott is not certified under SOC 2 Type 1.
According to Rankiteo, JW Marriott does not hold a SOC 2 Type 2 certification.
According to Rankiteo, JW Marriott is not listed as GDPR compliant.
According to Rankiteo, JW Marriott does not currently maintain PCI DSS compliance.
According to Rankiteo, JW Marriott is not compliant with HIPAA regulations.
According to Rankiteo,JW Marriott is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
JW Marriott operates primarily in the Hospitality industry.
JW Marriott employs approximately 15,169 people worldwide.
JW Marriott presently has no subsidiaries across any sectors.
JW Marriott’s official LinkedIn profile has approximately 270,347 followers.
JW Marriott is classified under the NAICS code 7211, which corresponds to Traveler Accommodation.
No, JW Marriott does not have a profile on Crunchbase.
Yes, JW Marriott maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/jw_marriott.
As of November 27, 2025, Rankiteo reports that JW Marriott has experienced 6 cybersecurity incidents.
JW Marriott has an estimated 13,638 peer or competitor companies worldwide.
Incident Types: The types of cybersecurity incidents that have occurred include Data Leak and Breach.
Detection and Response: The company detects and responds to cybersecurity incidents through an third party assistance with hired a third-party security firm to investigate the incident, and communication strategy with notified the affected individuals, and third party assistance with forensic firm, and law enforcement notified with yes, and communication strategy with affected individuals notified, and remediation measures with terminated relationship with the vendor, remediation measures with offering credit monitoring services, and communication strategy with public disclosure via california office of the attorney general..
Title: Data Breach at Marriott Hotel Chain
Description: A third attack against the hotel chain, Marriott, has resulted in yet another data breach. This is the second time this year that data has been stolen from the hotel firm. An employee at the BWI Airport Marriott in Baltimore stated that about 20GB of data, including credit card numbers and PII of visitors and employees, had been stolen. The hacking organisation requested a ransom from Marriott to keep the data they had obtained from being released, but the money was not paid.
Type: Data Breach
Motivation: Financial Gain
Title: Marriott International Data Breach
Description: Hotel giant Marriott International suffered a data breach after an unknown threat actor breached one of its properties and stole 20GB of files.
Type: Data Breach
Threat Actor: Unknown
Title: Marriott International Data Breach
Description: Hotel giant Marriott International suffered a data breach after an unknown person gained access to information about certain Marriott associates by accessing the network of an outside vendor formerly used by Marriott.
Type: Data Breach
Attack Vector: Access to vendor network
Threat Actor: Unknown
Title: Marriott International Data Breach
Description: Unauthorized access to information about certain associates through a vendor's network, compromising personal data including names, addresses, and Social Security numbers.
Date Publicly Disclosed: 2019-10-30
Type: Data Breach
Attack Vector: Unauthorized Access
Title: Marriott International (Starwood) Data Breach
Description: The California Office of the Attorney General reported a data breach at Marriott International, Inc. involving the Starwood guest reservation database. The breach occurred on or before September 10, 2018, and could potentially affect approximately 500 million guests, with 327 million guests' information including names, addresses, email addresses, and encrypted payment card numbers.
Date Detected: 2018-09-10
Date Publicly Disclosed: 2018-11-30
Type: Data Breach
Title: Marriott International Data Breach Settlement with the City of Chicago
Description: Marriott International Inc. settled the city of Chicago’s claims in consolidated litigation over a data breach that compromised the personal information of as many as 383 million guests at its Starwood-branded hotels. Judge John P. Bailey of the US District Court for the Northern District of West Virginia issued an order dismissing the city’s claims with prejudice on Thursday, one day after the city filed a stipulation of dismissal with the court.
Type: Data Breach
Common Attack Types: The most common types of attacks the company has faced is Breach.
Identification of Attack Vectors: The company identifies the attack vectors used in incidents through Vendor network.

Data Compromised: Credit card numbers, Pii

Data Compromised: Internal business files, Credit card information

Data Compromised: Name, Address, Social security number

Data Compromised: Names, Addresses, Social security numbers

Data Compromised: Names, Addresses, Email addresses, Encrypted payment card numbers
Systems Affected: Starwood guest reservation database
Brand Reputation Impact: High (due to scale of breach and sensitive data exposure)
Identity Theft Risk: High (due to exposure of PII)
Payment Information Risk: Moderate (payment card numbers were encrypted)

Data Compromised: Personal information of up to 383 million guests
Legal Liabilities: Consolidated litigation with the city of Chicago (settled)
Identity Theft Risk: ['Personal information of guests']
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Credit Card Numbers, Pii, , Internal Business Files, Credit Card Information, , Personally Identifiable Information, , Names, Addresses, Social Security Numbers, , Personal Identifiable Information (Pii), Payment Card Information (Encrypted), , Personal Information and .

Entity Name: Marriott
Entity Type: Hotel Chain
Industry: Hospitality
Location: Baltimore

Entity Name: Marriott International
Entity Type: Hotel
Industry: Hospitality

Entity Name: Marriott International
Entity Type: Company
Industry: Hospitality

Entity Name: Marriott International, Inc.
Entity Type: Corporation
Industry: Hospitality
Customers Affected: 1552

Entity Name: Marriott International, Inc.
Entity Type: Hospitality Corporation
Industry: Hospitality
Location: Global (Headquartered in Bethesda, Maryland, USA)
Size: Large (Fortune 500 company)
Customers Affected: Approximately 500 million (327 million with detailed records exposed)

Entity Name: Marriott International Inc.
Entity Type: Corporation
Industry: Hospitality
Location: Global (Headquartered in Bethesda, Maryland, USA)
Customers Affected: Up to 383 million guests (Starwood-branded hotels)

Entity Name: City of Chicago
Entity Type: Government Entity
Industry: Public Administration
Location: Chicago, Illinois, USA

Third Party Assistance: Hired a third-party security firm to investigate the incident
Communication Strategy: Notified the affected individuals

Third Party Assistance: Forensic firm
Law Enforcement Notified: Yes
Communication Strategy: Affected individuals notified

Remediation Measures: Terminated relationship with the vendorOffering credit monitoring services

Communication Strategy: Public disclosure via California Office of the Attorney General
Third-Party Assistance: The company involves third-party assistance in incident response through Hired a third-party security firm to investigate the incident, Forensic firm.

Type of Data Compromised: Credit card numbers, Pii
Sensitivity of Data: High

Type of Data Compromised: Internal business files, Credit card information
Data Exfiltration: 20GB of files

Type of Data Compromised: Personally identifiable information
Sensitivity of Data: High
Personally Identifiable Information: NameAddressSocial Security number

Type of Data Compromised: Names, Addresses, Social security numbers
Number of Records Exposed: 1552
Sensitivity of Data: High

Type of Data Compromised: Personal identifiable information (pii), Payment card information (encrypted)
Number of Records Exposed: Up to 500 million (327 million with sensitive details)
Sensitivity of Data: High
Data Exfiltration: Yes
Data Encryption: Payment card numbers were encrypted; other data (e.g., names, addresses) likely unencrypted
Personally Identifiable Information: NamesAddressesEmail addresses

Type of Data Compromised: Personal information
Number of Records Exposed: Up to 383 million
Sensitivity of Data: High (personal information of guests)
Personally Identifiable Information: Yes (guest personal information)
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Terminated relationship with the vendor, Offering credit monitoring services, .

Regulations Violated: Potential violations of GDPR (for EU guests), California Consumer Privacy Act (CCPA) considerations,
Regulatory Notifications: Reported to California Office of the Attorney General

Legal Actions: Litigation with the city of Chicago (settled),
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through Litigation with the city of Chicago (settled), .

Source: California Office of the Attorney General
Date Accessed: 2019-10-30

Source: California Office of the Attorney General
Date Accessed: 2018-11-30

Source: US District Court for the Northern District of West Virginia (Judge John P. Bailey)
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: California Office of the Attorney GeneralDate Accessed: 2019-10-30, and Source: California Office of the Attorney GeneralDate Accessed: 2018-11-30, and Source: US District Court for the Northern District of West Virginia (Judge John P. Bailey).

Investigation Status: Ongoing

Investigation Status: Settled (claims dismissed with prejudice)
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Notified the affected individuals, Affected individuals notified and Public disclosure via California Office of the Attorney General.

Entry Point: Vendor network

High Value Targets: Starwood Guest Reservation Database,
Data Sold on Dark Web: Starwood Guest Reservation Database,
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as Hired a third-party security firm to investigate the incident, Forensic firm.
Last Ransom Demanded: The amount of the last ransom demanded was True.
Last Attacking Group: The attacking group in the last incident were an Unknown and Unknown.
Most Recent Incident Detected: The most recent incident detected was on 2018-09-10.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2018-11-30.
Most Significant Data Compromised: The most significant data compromised in an incident were Credit Card Numbers, PII, , Internal business files, Credit card information, , Name, Address, Social Security number, , Names, Addresses, Social Security numbers, , Names, Addresses, Email addresses, Encrypted payment card numbers, , Personal information of up to 383 million guests and .
Most Significant System Affected: The most significant system affected in an incident was Starwood guest reservation database.
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was Hired a third-party security firm to investigate the incident, Forensic firm.
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Email addresses, Addresses, Credit Card Numbers, PII, Name, Social Security numbers, Encrypted payment card numbers, Social Security number, Personal information of up to 383 million guests, Internal business files, Address, Credit card information and Names.
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 1.2B.
Highest Ransom Demanded: The highest ransom demanded in a ransomware incident was True.
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was Litigation with the city of Chicago (settled), .
Most Recent Source: The most recent source of information about an incident are California Office of the Attorney General and US District Court for the Northern District of West Virginia (Judge John P. Bailey).
Current Status of Most Recent Investigation: The current status of the most recent investigation is Ongoing.
Most Recent Entry Point: The most recent entry point used by an initial access broker was an Vendor network.
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Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.16, 20.3.14, and 21.0.1, there is a XSRF token leakage via protocol-relative URLs in angular HTTP clients. The vulnerability is a Credential Leak by App Logic that leads to the unauthorized disclosure of the Cross-Site Request Forgery (XSRF) token to an attacker-controlled domain. Angular's HttpClient has a built-in XSRF protection mechanism that works by checking if a request URL starts with a protocol (http:// or https://) to determine if it is cross-origin. If the URL starts with protocol-relative URL (//), it is incorrectly treated as a same-origin request, and the XSRF token is automatically added to the X-XSRF-TOKEN header. This issue has been patched in versions 19.2.16, 20.3.14, and 21.0.1. A workaround for this issue involves avoiding using protocol-relative URLs (URLs starting with //) in HttpClient requests. All backend communication URLs should be hardcoded as relative paths (starting with a single /) or fully qualified, trusted absolute URLs.
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Integer Overflow vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft ASN.1 structures containing OIDs with oversized arcs. These arcs may be decoded as smaller, trusted OIDs due to 32-bit bitwise truncation, enabling the bypass of downstream OID-based security decisions. This issue has been patched in version 1.3.2.
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size.
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.

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