Incident: Ransomware Attack Disrupts Sinclair Broadcast Group's Operations

Published Date: 2021-10-18

Postmortem Analysis
Timeline 1. The software failure incident at Sinclair Broadcast Group happened on October 16, 2021 [120525, 120066].
System 1. Servers and workstations at Sinclair Broadcast Group were encrypted with ransomware, causing disruption to office and operational networks [120525, 120066].
Responsible Organization 1. The ransomware incident affecting Sinclair Broadcast Group's office and operational networks was caused by unidentified hackers who encrypted certain servers and workstations with ransomware, as reported by Sinclair Broadcast Group [120525, 120066].
Impacted Organization 1. Sinclair Broadcast Group (SBGI) [Article 120525, Article 120066]
Software Causes 1. Ransomware attack encrypting servers and workstations at Sinclair Broadcast Group [120525, 120066] 2. Theft of data by unidentified hackers from Sinclair's network [120525] 3. Disruption to office and operational networks due to the ransomware incident [120525, 120066]
Non-software Causes 1. The ransomware incident at Sinclair Broadcast Group was caused by unidentified hackers who encrypted certain servers and workstations, leading to disruption in office and operational networks [120525, 120066]. 2. The hackers also stole data from Sinclair's network, prompting the company to notify law enforcement and US government agencies for assistance [120525]. 3. The incident was part of a broader trend of ransomware attacks on US businesses, with President Joe Biden making cybersecurity a top priority and coordinating efforts with other countries to combat such threats [120066].
Impacts 1. The ransomware incident at Sinclair Broadcast Group disrupted some of its office and operational networks, causing disruption to the company's business, including the provision of local advertisements by its local broadcast stations [120525]. 2. The disturbance impeded the production of local newscasts, with some stations experiencing a lack of email, phones, file video, graphics, and live segments being pretaped [120525]. 3. The ransomware attack led to certain servers and workstations in Sinclair's environment being encrypted, with data stolen from the network [120525]. 4. The incident hindered the ability of some stations to produce newscasts without necessary software, affecting local live programming [120525]. 5. Sinclair's flagship station, WBFF in Baltimore, aired midday newscasts without usual graphics or accompaniments, and some segments were clearly pretaped [120525]. 6. Employees were prohibited from speaking with outside media about the matter, and Sinclair executives had little concrete information to share regarding the incident [120525]. 7. The ransomware attack may disrupt advertisements by Sinclair's local broadcast stations, impacting the company's business and financial results [120066].
Preventions 1. Implementing robust cybersecurity measures such as regular security audits, penetration testing, and network monitoring to detect and prevent ransomware attacks [120525, 120066]. 2. Educating employees on cybersecurity best practices, including how to identify and avoid phishing emails and suspicious links that could lead to ransomware infections [120525]. 3. Ensuring all software and systems are regularly updated with the latest security patches to address known vulnerabilities that could be exploited by hackers [120066]. 4. Implementing a comprehensive backup and disaster recovery plan to quickly restore systems and data in case of a ransomware attack, reducing the impact of such incidents [120525].
Fixes 1. Implementing robust cybersecurity measures to prevent future ransomware attacks, such as regular security audits, employee training on cybersecurity best practices, and network segmentation to limit the spread of malware [120525, 120066]. 2. Enhancing data backup and recovery systems to ensure quick restoration of encrypted data without paying ransom demands [120525, 120066]. 3. Collaborating with law enforcement and government agencies to investigate the incident, identify the hackers, and potentially recover stolen data [120525]. 4. Updating and patching software vulnerabilities to prevent future exploitation by cybercriminals [120066]. 5. Enhancing incident response protocols to minimize the impact of future cybersecurity incidents and ensure a swift recovery process [120525].
References 1. Sinclair Broadcast Group (SBGI) [Article 120525, Article 120066] 2. Sinclair CEO Chris Ripley [Article 120525] 3. Staffers at Sinclair TV stations [Article 120525] 4. Reporters at Sinclair TV stations [Article 120525] 5. The Record (cybersecurity news outlet) [Article 120525]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization, multiple_organization (a) The software failure incident has happened again at Sinclair Broadcast Group (SBGI). This incident involving ransomware disrupting office and operational networks is not the first time Sinclair has faced a cybersecurity issue. The article mentions a previous incident where Sinclair was hit by a ransomware attack, leading to encrypted servers and workstations [120525, 120066]. (b) The software failure incident has also occurred at other organizations. The article mentions previous incidents at Australia's 9 News network and local stations owned by the Cox Media Group in the US, where cyberattacks disrupted live broadcasts. This indicates that similar incidents have happened at multiple organizations in the media industry [120525].
Phase (Design/Operation) operation (a) The software failure incident at Sinclair Broadcast Group was primarily due to a ransomware attack that encrypted certain servers and workstations in its environment [120525, 120066]. This incident was a result of external factors introduced by malicious actors targeting the company's systems, rather than internal design flaws or system updates. (b) The operation of Sinclair's business, including the provision of local advertisements by its broadcast stations, was disrupted as a result of the ransomware attack [120525]. The attack impacted the day-to-day operations of the company, such as impeding the production of local newscasts, causing a loss of access to essential tools like email, phones, file video, and graphics, and hindering the ability to broadcast live programming.
Boundary (Internal/External) within_system, outside_system (a) within_system: The software failure incident at Sinclair Broadcast Group was caused by ransomware that encrypted certain servers and workstations within the company's environment [120525, 120066]. The ransomware attack disrupted office and operational networks, impeding the production of local newscasts and causing disruptions to the company's provision of local advertisements [120525]. The incident also involved the theft of data from Sinclair's network, indicating that the failure originated from within the system [120525]. (b) outside_system: The ransomware attack on Sinclair Broadcast Group was initiated by unidentified hackers who infiltrated the company's network from outside sources [120525]. The hackers encrypted servers and workstations, leading to disruptions in the company's operations and causing widespread ripple effects [120525]. Additionally, the incident involved notifying law enforcement and US government agencies, suggesting external involvement in the failure [120525].
Nature (Human/Non-human) non-human_actions, human_actions (a) The software failure incident at Sinclair Broadcast Group was caused by a ransomware attack, which is a type of non-human action. The ransomware encrypted servers and workstations in the company's environment, disrupting office and operational networks [120525, 120066]. The attack led to disruptions in the company's provision of local advertisements and production of local newscasts, impacting various aspects of Sinclair's business operations [120525]. (b) Human actions were also involved in the response to the incident. Sinclair executives prohibited employees from speaking with outside media about the matter, indicating a human decision to control communication regarding the ransomware attack [120525]. Additionally, Sinclair CEO Chris Ripley fielded questions from staffers during a town hall meeting but had limited concrete information to share, highlighting the human aspect of managing the aftermath of the software failure incident [120525].
Dimension (Hardware/Software) software (a) The software failure incident at Sinclair Broadcast Group was primarily due to a ransomware attack, which is a type of cyberattack that involves malicious software encrypting computer networks until a ransom is paid [120525, 120066]. This incident was not caused by hardware failure but rather by external factors related to cybersecurity threats originating in software. (b) The software failure incident at Sinclair Broadcast Group was caused by ransomware encrypting servers and workstations, disrupting office and operational networks [120525, 120066]. This failure originated in software, specifically the malicious ransomware software that infiltrated the company's systems.
Objective (Malicious/Non-malicious) malicious (a) The software failure incident reported in the news articles is malicious in nature. It was caused by a ransomware attack on Sinclair Broadcast Group's servers and workstations, where certain servers and workstations were encrypted with ransomware by unidentified hackers [Article 120525, Article 120066]. Ransomware is a type of malicious software that locks computer networks until victims pay a fee, and in this case, the hackers also stole data from Sinclair's network. The incident disrupted the company's office and operational networks, leading to disruptions in the provision of local advertisements and production of local newscasts [Article 120525]. The ransomware attack was aimed at causing harm and disruption to Sinclair's operations.
Intent (Poor/Accidental Decisions) poor_decisions (a) The software failure incident at Sinclair Broadcast Group was due to poor decisions made by the hackers who introduced ransomware into the company's networks. The ransomware attack encrypted servers and workstations, causing disruption to office and operational networks [120525, 120066]. The hackers also stole data from Sinclair's network, leading to further complications and uncertainty about the extent of the impact on the company's operations [120525]. The incident highlights the consequences of poor decisions made by cybercriminals targeting organizations for financial gain.
Capability (Incompetence/Accidental) unknown (a) The software failure incident at Sinclair Broadcast Group was due to a ransomware attack, where certain servers and workstations were encrypted with ransomware, disrupting office and operational networks [120525, 120066]. This incident was a result of malicious actions by unidentified hackers who stole data from Sinclair's network, leading to disruption in various aspects of the company's business operations, including the provision of local advertisements by its broadcast stations [120525]. (b) The ransomware attack on Sinclair's network was not accidental but a deliberate act by hackers who encrypted the company's servers and workstations, indicating a malicious intent rather than an accidental introduction of contributing factors [120525, 120066].
Duration temporary The software failure incident reported in the news articles is temporary. The incident involved a ransomware attack on Sinclair Broadcast Group's servers and workstations, causing disruption to its office and operational networks [120525, 120066]. The company is actively investigating the impact of the ransomware, notifying law enforcement and government agencies, and working to restore operations quickly and securely. The disruption impeded the production of local newscasts, with some stations struggling to produce newscasts without necessary software tools. Despite the disruption, Sinclair's stations are still on the air, showing national and syndicated programming, while local live programming like newscasts has been largely hindered. Employees were still instructed to broadcast if possible, indicating a temporary nature of the incident.
Behaviour crash, omission, other (a) crash: The software failure incident reported in the articles can be categorized as a crash. The ransomware attack on Sinclair Broadcast Group's servers and workstations caused disruption to the company's business operations, including the production of local newscasts, email, phones, file video, graphics, and other essential functions. The incident led to a loss of state and prevented the system from performing its intended functions [120525, 120066]. (b) omission: The software failure incident also involved omission as a behavior. Staffers at some TV stations mentioned that the disruption impeded the production of local newscasts throughout the day on Sunday and Monday. They reported not having access to email, phones, file video, graphics, or other necessary tools for their work, indicating that the system omitted to perform its intended functions at those instances [120525]. (c) timing: The timing of the software failure incident was not explicitly mentioned in the articles. (d) value: The software failure incident did not involve the system performing its intended functions incorrectly. (e) byzantine: The software failure incident did not exhibit behaviors of the system behaving erroneously with inconsistent responses and interactions. (f) other: The software failure incident also included the behavior of preventing employees from accessing company emails or any system that required a company login, further illustrating the impact of the crash on the system's functionality [120525].

IoT System Layer

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

Other Details

Category Option Rationale
Consequence property, non-human, theoretical_consequence (d) property: People's material goods, money, or data was impacted due to the software failure The software failure incident involving ransomware at Sinclair Broadcast Group resulted in the encryption of certain servers and workstations, leading to disruption in office and operational networks. The ransomware attack not only caused disruption to the company's business operations, including the provision of local advertisements by its broadcast stations but also resulted in the theft of data from Sinclair's network. The company mentioned that it was working to determine what information was taken, and it had notified law enforcement and government agencies about the incident. The attack could potentially have a material impact on the company's business and financial results [Article 120525, Article 120066].
Domain information, finance (a) The failed system was intended to support the production and distribution of information in the industry. The software failure incident affected Sinclair Broadcast Group's office and operational networks, disrupting the provision of local advertisements by its local broadcast stations [120525, 120066]. (h) The incident also impacted the finance industry as Sinclair Broadcast Group mentioned that the disruption caused by the ransomware attack may affect certain aspects of its provision of local advertisements on behalf of its customers [120525]. (m) Additionally, the incident had implications for other industries such as national security, as ransomware attacks have become a national security priority for the Biden administration after disrupting critical infrastructure firms in the US [120525].

Sources

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