Incident: Reddit Data Breach: Hacker Accesses User Data and Passwords

Published Date: 2018-08-01

Postmortem Analysis
Timeline 1. The software failure incident happened between June 14 and June 18, 2018 as reported in Article 73510.
System The system(s) that failed in the software failure incident reported in Article 73510 are: 1. Reddit's systems 2. Employees' accounts 3. Text message-based one-time login codes
Responsible Organization 1. Hacker [73510]
Impacted Organization 1. Reddit users [73510]
Software Causes 1. The software causes of the failure incident were: - Hacker breaking into Reddit's systems and accessing user data, including email addresses and an old encrypted password database [73510].
Non-software Causes 1. The hacker intercepted text messages meant to reach employees with one-time login codes, allowing unauthorized access to employee accounts [73510].
Impacts 1. User data, including current email addresses and old encrypted passwords, was accessed by the hacker [73510]. 2. A copy of an old database backup containing early Reddit user data from 2005 through May 2007 was compromised [73510]. 3. The attacker gained read-only access to systems containing backup data, source code, and other logs [73510]. 4. The breach involved the compromise of employees' accounts through intercepting text messages with one-time login codes [73510].
Preventions 1. Implementing multi-factor authentication for employee accounts could have prevented the software failure incident by adding an extra layer of security beyond just passwords [73510]. 2. Regular security training and awareness programs for employees to prevent social engineering attacks like intercepting text messages with one-time login codes [73510]. 3. Conducting regular security audits and penetration testing to identify and address vulnerabilities in the system before they can be exploited by hackers [unknown].
Fixes 1. Implementing stronger authentication methods to prevent unauthorized access, such as multi-factor authentication [73510]. 2. Regularly updating and patching systems to address vulnerabilities that could be exploited by hackers [73510]. 3. Conducting thorough security audits and assessments to identify and address any weaknesses in the system [73510].
References 1. Reddit's founding engineer Christopher Slowe [73510] 2. Reuters news agency [73510]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) The software failure incident at Reddit involving a hacker accessing user data and old encrypted passwords from a 2007 database backup is an example of a security breach that happened within the same organization [73510]. This incident highlights the importance of robust security measures to prevent unauthorized access to sensitive information. (b) There is no information in the provided article about a similar incident happening at other organizations or with their products and services.
Phase (Design/Operation) design, operation (a) The software failure incident related to the design phase can be seen in the Reddit data breach incident reported in Article 73510. The hacker accessed an old database backup containing very early Reddit user data from the site's launch in 2005 through May 2007. This breach occurred due to a vulnerability in Reddit's systems that allowed unauthorized access to sensitive user data, indicating a failure in the design or security measures of the system [73510]. (b) The software failure incident related to the operation phase is evident in the Reddit data breach incident as well. The breach was carried out by intercepting text messages that were meant to reach employees with one-time login codes. This indicates a failure in the operation or misuse of the system, as the attackers exploited the operational procedures involving the use of one-time login codes to gain unauthorized access to employee accounts [73510].
Boundary (Internal/External) within_system, outside_system (a) The software failure incident reported in the article is within_system. The hacker broke into Reddit's systems and accessed user data, including email addresses and an old database backup containing encrypted passwords. The breach involved compromising employees' accounts by intercepting text messages with one-time login codes. Reddit's founding engineer mentioned that the attacker gained read-only access to systems containing backup data, source code, and logs, indicating that the failure originated from within the system [73510].
Nature (Human/Non-human) non-human_actions, human_actions (a) The software failure incident in this case was primarily due to non-human actions. A hacker broke into Reddit's systems and accessed user data, including email addresses and an old database backup containing encrypted passwords. The attacker gained read-only access to systems containing backup data, source code, and logs. The breach was carried out by intercepting text messages meant for employees with one-time login codes, indicating a breach in the system's security protocols [73510]. (b) Human actions also played a role in this software failure incident. Reddit mentioned that the attacker compromised a few employees' accounts by intercepting text messages containing one-time login codes. This suggests that human error or vulnerability in the authentication process contributed to the breach [73510].
Dimension (Hardware/Software) software (a) The software failure incident reported in the article did not mention any contributing factors originating in hardware. It primarily focused on a hacker breaking into Reddit's systems and accessing user data, including email addresses and an old database backup containing encrypted passwords [73510]. (b) The software failure incident was attributed to a hacker breaking into Reddit's systems, gaining read-only access to backup data, source code, and other logs. The breach involved compromising employees' accounts by intercepting text messages with one-time login codes [73510].
Objective (Malicious/Non-malicious) malicious (a) The software failure incident reported in Article 73510 was malicious in nature. A hacker broke into Reddit's systems and accessed user data, including email addresses and an old database backup containing encrypted passwords. The breach involved compromising employees' accounts by intercepting text messages with one-time login codes, indicating a deliberate attempt to gain unauthorized access to sensitive information [73510].
Intent (Poor/Accidental Decisions) poor_decisions (a) The software failure incident reported in Article 73510 was due to poor decisions. The incident involved a hacker breaking into Reddit's systems and accessing user data, including email addresses and an old database backup containing encrypted passwords. The breach occurred due to the attacker compromising employees' accounts by intercepting text messages with one-time login codes. This incident highlights the consequences of inadequate security measures and potentially poor decisions related to data protection and employee authentication processes. [73510]
Capability (Incompetence/Accidental) accidental (a) The software failure incident reported in Article 73510 was not attributed to development incompetence. The breach was carried out by a hacker who gained access to some systems containing backup data, source code, and other logs. The incident involved the hacker breaking into Reddit's systems and accessing user data, including email addresses and an old database backup with encrypted passwords. The breach was a result of a security incident rather than development incompetence [73510]. (b) The software failure incident reported in Article 73510 was accidental in nature. Reddit mentioned that the breach occurred due to the attacker compromising a few employees' accounts by intercepting text messages meant for one-time login codes. This accidental interception led to unauthorized access to the systems containing sensitive data. The incident was not intentional but rather a result of the attacker exploiting vulnerabilities in the system [73510].
Duration temporary The software failure incident reported in Article 73510 was temporary. The incident involved a hacker breaking into Reddit's systems and accessing user data, including email addresses and an old database backup containing encrypted passwords. The breach occurred between June 14 and June 18, and Reddit learned about it on June 19. The breach was due to the attacker compromising employees' accounts by intercepting text messages with one-time login codes. Reddit mentioned that the attacker gained read-only access to some systems, indicating a temporary breach rather than a permanent one [73510].
Behaviour value, other (a) crash: The software failure incident in the article is not described as a crash where the system loses state and does not perform any of its intended functions. (b) omission: The incident does not mention the system omitting to perform its intended functions at an instance(s). (c) timing: The incident does not involve the system performing its intended functions correctly but too late or too early. (d) value: The software failure incident involves the system performing its intended functions incorrectly. A hacker accessed user data, including email addresses and an old database backup containing encrypted passwords, indicating a failure in maintaining the security and integrity of user information [73510]. (e) byzantine: The incident does not describe the system behaving erroneously with inconsistent responses and interactions. (f) other: The software failure incident in the article involves unauthorized access by a hacker to Reddit's systems, leading to a breach of user data. This unauthorized access resulted in the exposure of sensitive information, indicating a security breach and a failure in protecting user data [73510].

IoT System Layer

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

Other Details

Category Option Rationale
Consequence property, theoretical_consequence (d) property: People's material goods, money, or data was impacted due to the software failure. The software failure incident reported in Article 73510 involved a hacker breaking into Reddit's systems and accessing user data, including email addresses and an old encrypted password database backup from 2007. This breach resulted in the compromise of some employees' accounts and the unauthorized access to backup data, source code, and other logs. The incident led to potential risks for the affected users in terms of data security and privacy [73510].
Domain information (a) The failed system in the reported incident was related to the information industry as it involved a hacker breaking into Reddit's systems and accessing user data, including email addresses and an old database backup containing encrypted passwords [73510].

Sources

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