Incident: Data Breach at First American Financial Corp. Exposes Customer Information

Published Date: 2019-05-25

Postmortem Analysis
Timeline 1. The software failure incident at First American Financial Corp. happened on May 24th, as mentioned in the article [84790].
System 1. First American Financial Corp.'s production application [84790]
Responsible Organization 1. First American Financial Corp. [84790]
Impacted Organization 1. Customers of First American Financial Corp. [84790]
Software Causes 1. Design defect in one of First American Financial Corp.'s production applications that allowed unauthorized access to customer data [84790].
Non-software Causes 1. Lack of password protection or encryption on the digital documents [84790] 2. Design defect in one of the production applications [84790]
Impacts 1. The software failure incident at First American Financial Corp. left nearly 900 million files exposed, potentially containing sensitive information such as bank account numbers, statements, mortgage and tax records, Social Security numbers, wire transaction receipts, and drivers' license images [84790]. 2. The exposed documents were accessible without password protection or encryption, making it easy for bad actors to view the information [84790]. 3. The vulnerability allowed unauthorized access to customer data due to a design defect in one of the company's production applications [84790]. 4. The incident raised concerns about the security of customer information and the potential impact on affected customers, although the exact number of documents exposed and customers impacted was not confirmed by the company [84790].
Preventions 1. Implementing proper access controls such as password protection and encryption for sensitive documents [84790]. 2. Conducting regular security audits and vulnerability assessments to identify and address potential weaknesses in the system [84790]. 3. Ensuring that URLs for accessing documents are not easily guessable or predictable to prevent unauthorized access [84790].
Fixes 1. Implement proper access controls and encryption measures to protect sensitive data stored online [84790]. 2. Conduct regular security audits and vulnerability assessments to identify and address potential weaknesses in the system [84790]. 3. Enhance user authentication mechanisms to prevent unauthorized access to customer data [84790].
References 1. Krebs on Security [84790] 2. First American Financial Corp. [84790] 3. CNN Business [84790]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization, multiple_organization (a) The software failure incident related to the exposure of sensitive customer data due to a design defect in one of its production applications at First American Financial Corp. is a case of a similar incident happening within the same organization. The article mentions that other companies like Kay Jewelers, Fiserv, and LifeLock have also remedied similar exposures in the past year, indicating a pattern of such incidents within the industry [84790].
Phase (Design/Operation) design, operation (a) The software failure incident related to the design phase is evident in the article. First American Financial Corp. confirmed that they learned of a design defect in one of its production applications that allowed unauthorized access to customer data [84790]. This design flaw in the application made it possible for bad actors to view sensitive documents without the need for password protection or encryption, indicating a failure introduced during the development phase. (b) The software failure incident related to the operation phase is also highlighted in the article. First American took immediate action to address the situation and shut down external access to the application once they became aware of the issue [84790]. This response to the incident falls under the operation phase, as it involves actions taken to mitigate the impact of the design flaw during the system's operation.
Boundary (Internal/External) within_system, outside_system (a) within_system: The software failure incident at First American Financial Corp. was due to a design defect in one of its production applications, which made unauthorized access to customer data possible. The company confirmed that the issue was a result of a design flaw within their system, allowing bad actors to view sensitive documents without the need for password protection or encryption [84790]. (b) outside_system: The vulnerability that led to the exposure of nearly 900 million files containing sensitive information was exploited by bad actors who only needed a web address to access the documents. This indicates that the contributing factor originating from outside the system was the malicious intent of individuals taking advantage of the system's design flaw [84790].
Nature (Human/Non-human) non-human_actions (a) The software failure incident in this case occurred due to non-human actions. The vulnerability that exposed nearly 900 million files containing sensitive information was a result of a design defect in one of First American Financial Corp.'s production applications. This defect allowed unauthorized access to customer data without the need for human intervention. The documents were left without password protection or encryption, making it easy for bad actors to view them by simply knowing the web address of a document [84790].
Dimension (Hardware/Software) software (a) The software failure incident in Article 84790 was not directly attributed to hardware issues. The vulnerability that led to the exposure of sensitive customer data at First American Financial Corp. was due to a design defect in one of its production applications, which allowed unauthorized access to customer data. This design defect was a software-related issue rather than a hardware-related one [84790].
Objective (Malicious/Non-malicious) malicious (a) The software failure incident in Article 84790 was malicious in nature. The incident involved a design defect in one of First American Financial Corp.'s production applications that allowed unauthorized access to customer data. This vulnerability left an enormous trove of digital documents exposed, including sensitive information such as social security numbers, bank account numbers, mortgage and tax records, wire transaction receipts, and more. Bad actors could easily access these documents without any password protection or encryption, potentially leading to unauthorized access to sensitive customer information [84790].
Intent (Poor/Accidental Decisions) poor_decisions (a) The software failure incident related to the exposure of sensitive customer data at First American Financial Corp. was primarily due to poor decisions. The incident occurred due to a design defect in one of its production applications that allowed unauthorized access to customer data. The documents containing sensitive information were left online without password protection or encryption, making it easy for bad actors to access them with just a web address. This design flaw and lack of security measures were contributing factors introduced by poor decisions made in the development and implementation of the software [84790].
Capability (Incompetence/Accidental) development_incompetence, accidental (a) The software failure incident in Article 84790 occurred due to development incompetence. First American Financial Corp. left an enormous trove of digital documents vulnerable, some containing sensitive information like social security numbers and bank account details, without password protection or encryption. This design defect in one of its production applications allowed unauthorized access to customer data, highlighting a lack of professional competence in ensuring proper security measures were in place [84790]. (b) The incident can also be categorized as accidental, as the exposure of nearly 900 million files containing sensitive information was not intentional but rather a result of the design defect in the application that allowed unauthorized access. The company took immediate action to address the situation and shut down external access to the application upon discovery, indicating that the exposure was accidental rather than deliberate [84790].
Duration temporary The software failure incident reported in Article 84790 was temporary. The incident was caused by a design defect in one of First American Financial Corp.'s production applications, which allowed unauthorized access to customer data. The company took immediate action to address the situation by shutting down external access to the application. They are currently evaluating the impact on customer information and conducting an internal review before providing further comments [84790].
Behaviour crash, omission, value, other (a) crash: The software failure incident in the article can be categorized as a crash. The incident involved a design defect in one of First American Financial Corp.'s production applications that allowed unauthorized access to customer data, leading the company to shut down external access to the application [84790]. (b) omission: The software failure incident can also be categorized as an omission. The system omitted to protect the enormous trove of digital documents containing sensitive information by leaving them without password protection or other encryption, making them easily accessible to bad actors [84790]. (c) timing: The timing of the software failure incident is not explicitly mentioned in the article. (d) value: The software failure incident can be categorized as a value failure. The system failed to perform its intended function correctly by allowing unauthorized access to customer data, potentially exposing sensitive information such as social security numbers, bank account information, and other personal documents [84790]. (e) byzantine: The software failure incident is not described as exhibiting byzantine behavior in the article. (f) other: The software failure incident can be categorized as a security vulnerability leading to a data breach. The incident involved a flaw in the system's design that allowed for unauthorized access to a vast amount of sensitive customer information, highlighting a significant security lapse [84790].

IoT System Layer

Layer Option Rationale
Perception None None
Communication None None
Application None None

Other Details

Category Option Rationale
Consequence property, theoretical_consequence (property) The software failure incident at First American Financial Corp. led to the exposure of an enormous trove of digital documents containing sensitive information such as social security numbers, bank account information, mortgage and tax records, wire transaction receipts, and driver's license images [84790]. The potential consequence of this exposure could be financial harm to the individuals whose data was compromised.
Domain finance (a) The failed system was related to the finance industry as it involved a leading US real estate and mortgage insurer, First American Financial Corp., which left a trove of digital documents vulnerable, including sensitive financial information such as bank account numbers, mortgage and tax records, wire transaction receipts, and drivers' license images [Article 84790].

Sources

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