Incident: Data Breach at Hana Centre Exposes North Korean Defectors' Information

Published Date: 2018-12-28

Postmortem Analysis
Timeline 1. The software failure incident, where the personal information of nearly 1,000 North Korean defectors was leaked due to hackers gaining access to a resettlement agency's database, happened last week before the article was published on December 28, 2018 [79111]. Therefore, the estimated timeline for the software failure incident would be around the third week of December 2018.
System The system that failed in the software failure incident reported in Article 79111 is: 1. Hana centre's database security system - The database security system at the Hana centre failed to prevent unauthorized access by unknown hackers, leading to the leakage of personal information of nearly 1,000 North Korean defectors [79111].
Responsible Organization 1. Unknown [79111]
Impacted Organization 1. Nearly 1,000 North Korean defectors who had their personal information leaked due to the hack at the Hana centre in South Korea [79111].
Software Causes 1. Malicious software infection through emails sent by an internal address at the Hana centre [79111]
Non-software Causes 1. The personal information leak of nearly 1,000 North Korean defectors was caused by unknown hackers gaining access to a resettlement agency's database through a computer infected with malicious software [79111]. 2. The malware was planted through emails sent by an internal address at the Hana centre [79111]. 3. The incident involved a breach of personal data including names, birth dates, and addresses of the defectors [79111]. 4. The failure incident led to concerns about the safety and security of the affected defectors, who are already vulnerable due to their status as defectors from North Korea [79111].
Impacts 1. Personal information of nearly 1,000 North Korean defectors, including names, birth dates, and addresses, was leaked [79111]. 2. The data breach raised concerns about the safety and security of the affected defectors [79111].
Preventions 1. Implementing robust email security measures to prevent malware from being planted through phishing emails [79111]. 2. Conducting regular security audits and vulnerability assessments on the database and systems to detect and mitigate any potential weaknesses [79111]. 3. Providing cybersecurity training to employees at the agency to raise awareness about the risks of cyber-attacks and how to identify suspicious emails or activities [79111]. 4. Utilizing multi-factor authentication for accessing sensitive databases to add an extra layer of security against unauthorized access [79111].
Fixes 1. Implementing robust email security measures to prevent malware from being planted through phishing emails sent by internal addresses [79111]. 2. Conducting a thorough security audit of the agency's database systems to identify and patch any vulnerabilities that could have been exploited by the hackers [79111]. 3. Enhancing overall cybersecurity protocols and practices within the agency to prevent future incidents of data breaches or unauthorized access [79111].
References 1. South Korean unification ministry [79111] 2. Hana centre [79111]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) The software failure incident having happened again at one_organization: The article mentions that North Korean hackers have been accused of cyber-attacks on South Korean state agencies and businesses in the past. Specifically, North Korea stole classified documents from the South’s defense ministry and a shipbuilder last year, and a cryptocurrency exchange filed for bankruptcy following a cyber-attack linked to North Korea. This indicates a history of cyber-attacks by North Korean hackers on South Korean organizations, suggesting a recurrence of software failure incidents within the same context [79111]. (b) The software failure incident having happened again at multiple_organization: The article does not provide specific information about similar incidents happening at multiple organizations. Therefore, it is unknown if this software failure incident has occurred at other organizations as well.
Phase (Design/Operation) design (a) The software failure incident in Article 79111 occurred due to the design phase. The personal information of nearly 1,000 North Koreans who defected to South Korea was leaked after unknown hackers gained access to a resettlement agency’s database. The hackers planted malware through emails sent by an internal address at the Hana centre, indicating a vulnerability introduced during the system development or system updates [79111].
Boundary (Internal/External) within_system, outside_system (a) The software failure incident in this case falls under the within_system category. The failure occurred due to hackers gaining access to a resettlement agency's database through a computer infected with malicious software at the Hana centre [79111]. The malware was planted through emails sent by an internal address within the agency, indicating an internal system vulnerability that was exploited by the hackers.
Nature (Human/Non-human) non-human_actions (a) The software failure incident in this case occurred due to non-human actions, specifically through the planting of malware via emails sent by an internal address at the Hana centre [79111]. The hackers gained access to the resettlement agency's database and stole personal information of nearly 1,000 North Korean defectors without direct human involvement in the breach. (b) The article does not provide information indicating that the software failure incident was due to contributing factors introduced by human actions.
Dimension (Hardware/Software) software (a) The software failure incident in Article 79111 was not attributed to hardware issues. The incident was specifically related to a data breach caused by hackers gaining access to a resettlement agency's database through a computer infected with malicious software planted via email [79111]. (b) The software failure incident in Article 79111 was primarily due to contributing factors originating in software. The breach occurred as a result of malware being planted through emails sent by an internal address, leading to the theft of personal information of nearly 1,000 North Korean defectors [79111].
Objective (Malicious/Non-malicious) malicious (a) The software failure incident in this case is malicious. Hackers gained access to a resettlement agency's database through a computer infected with malicious software, resulting in the theft of personal information of nearly 1,000 North Koreans who defected to South Korea [79111]. The malware was planted through emails sent by an internal address at the agency, indicating a deliberate attempt to breach the system and steal sensitive data. The incident is being investigated by the police to determine the motive behind the hack, with previous cyber-attacks by North Korean hackers on South Korean entities being mentioned as context for such malicious activities.
Intent (Poor/Accidental Decisions) poor_decisions (a) The software failure incident of the data breach involving the personal information of North Korean defectors in South Korea was likely due to poor decisions. The incident occurred after unknown hackers gained access to a resettlement agency's database through a computer infected with malicious software at the Hana centre. The malware was planted through emails sent by an internal address at the agency, indicating a vulnerability introduced by poor decisions in terms of cybersecurity measures [79111].
Capability (Incompetence/Accidental) accidental (a) The software failure incident in Article 79111 was not explicitly attributed to development incompetence. The incident was primarily described as a data breach caused by unknown hackers gaining access to a resettlement agency's database through a computer infected with malicious software. The specific details provided did not indicate any incompetence in the development process. (b) The software failure incident in Article 79111 was attributed to an accidental breach caused by hackers gaining unauthorized access to the database through malware planted via emails sent by an internal address at the Hana centre. The breach was not intentional and was described as a result of malicious actions by external parties rather than accidental mistakes within the organization.
Duration permanent (a) The software failure incident in this case appears to be permanent as the personal information of nearly 1,000 North Korean defectors was leaked due to unknown hackers gaining access to a resettlement agency's database [79111]. The incident resulted in the theft of sensitive data such as names, birth dates, and addresses of the defectors, indicating a significant and lasting impact on the individuals affected. The breach was attributed to a computer infected with malicious software at the Hana centre, highlighting a serious security breach that led to the permanent exposure of confidential information.
Behaviour crash, value, other (a) crash: The software failure incident in the article can be categorized as a crash. The incident involved the personal information of nearly 1,000 North Korean defectors being leaked after hackers gained access to a resettlement agency's database. This leak occurred due to a computer infected with malicious software at the Hana centre, leading to a loss of data and a failure in the system's intended function [79111]. (b) omission: There is no specific mention of the software failure incident being related to omission in the articles. (c) timing: The incident does not align with a timing failure as the system did not perform its intended functions too late or too early; rather, it failed to protect the personal information of the defectors due to the hack [79111]. (d) value: The software failure incident can be associated with a value failure as the system performed its intended functions incorrectly by allowing hackers to access and steal the personal information of the defectors, compromising their privacy and security [79111]. (e) byzantine: The incident does not exhibit characteristics of a byzantine failure where the system behaves erroneously with inconsistent responses and interactions. (f) other: The behavior of the software failure incident can be described as a security breach leading to unauthorized access and data theft, resulting in a violation of privacy and potential harm to the affected individuals [79111].

IoT System Layer

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

Other Details

Category Option Rationale
Consequence property (d) property: People's material goods, money, or data was impacted due to the software failure The software failure incident mentioned in Article 79111 resulted in the personal information of nearly 1,000 North Koreans who defected to South Korea being leaked. The hackers gained access to a resettlement agency's database, leading to the theft of names, birth dates, and addresses of the defectors. This breach of personal data can be considered as an impact on people's data due to the software failure [79111].
Domain information, government (a) The software failure incident reported in Article 79111 is related to the information industry. The incident involved a hack where personal information of nearly 1,000 North Koreans who defected to South Korea was leaked after hackers gained access to a resettlement agency's database [79111]. The agency, Hana centre, is involved in helping defectors adjust to life in South Korea by providing various support services [79111]. (l) The software failure incident also has implications for the government sector. The South Korean unification ministry, which runs the Hana centre and other institutes to assist defectors, was the entity reporting the data breach incident [79111]. The ministry is responsible for overseeing issues related to North Korean defectors and the reunification process between North and South Korea [79111]. (m) Additionally, the incident could be linked to the security industry. The breach involved a cyber-attack where hackers gained unauthorized access to the database containing sensitive personal information of defectors [79111]. This highlights the importance of cybersecurity measures in safeguarding sensitive data and preventing such incidents in the future.

Sources

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