The following are typical cases and details of employee salary data of some well-known companies around the world that have been publicly leaked. These incidents reflect the different forms of data security vulnerabilities and their impact.： --- ### **1. Twitter (2022)** -**Background of the incident**: After Elon Musk acquired Twitter, the company experienced large-scale layoffs and restructuring, resulting in chaotic data management. -**Leaked details**: A former employee disclosed the salary data of Twitter employees on the hacker forum BreachForums, including their names, positions, work locations, salary levels (including equity and bonuses), and personal contact details of some employees. -**Impact**: Leaked data is used in targeted phishing attacks, and employees face privacy threats. The company then strengthened internal authority management and launched a judicial investigation. --- ### **2. Google (2019)** -**Cause of the incident**: Employees spontaneously organized a salary transparency campaign and voluntarily submitted salary information through an internally shared electronic form, which was later disclosed due to misoperation of the form. -**Leaked content**: Details of the positions, ranks, basic wages, bonuses and equity awards of thousands of employees were exposed, sparking internal disputes over gender and racial pay gaps. -**Follow-up actions**: Google adjusted its compensation structure and promised to increase transparency, but emphasized its opposition to unauthorized data sharing. --- ### **3. Uber (2014)** -**Hacking attack**: Hackers hacked into Uber's GitHub code base and obtained a database including employee salaries, social security numbers, and tax information. -**Scope of impact**: Data breach of more than 77,000 current and former employees. Uber was fined US1148 million by the US Federal Trade Commission (FTC) for concealing the incident for two years. --- ### **4. IBM (2007)** -**Management error**: IBM mistakenly uploaded spreadsheets containing more than 100,000 employee salaries, bonuses, and performance evaluations to a public server, and the data could be crawled by search engines. -**Consequences**: Employees filed a class action lawsuit accusing the company of failing to fulfill its data protection obligations. IBM eventually paid a multi-million dollar settlement. --- ### **5. Equifa (2017)** -**Large-scale data breach**: The credit agency Equifa was hacked due to a system vulnerability, leaking 147 million user data and affecting employee information at the same time. -**Employee data breach**: Internal documents show that some executive salaries, performance evaluations, and sensitive email content have been exposed. -**Fines and compensation**: The company paid a settlement of more than 700 million US dollars, which has become an iconic case in the field of data security. --- ### **6. Bumble (2021)** -* *Former employee leaks**: A departing employee leaked Bumble's salary scale on the anonymous social platform Blind, listing in detail the basic salary and stock reward range of different ranks. -**Industry impact**: Data is widely used in salary benchmarking in the technology industry, which has intensified talent competition. --- ### **7. Meta (Facebook, 2018)** -**Internal system vulnerability**: Due to the misconfiguration of internal tools, the salary and promotion information of thousands of employees can be freely accessed by cross-departmental employees. -**Follow-up rectification**: Meta revised data access rights and introduced automated monitoring tools. --- ###**Common lessons of the incident** 1. **Internal threats**: Misoperation by former employees, contractors, or current employees often becomes the source of leaks. 2. **Technical vulnerabilities**: Outdated systems, unencrypted data, or incorrect cloud configuration are common risk points. 3. **Legal risks**: Regulations such as the European Union's GDPR and the United States' CCPA impose severe penalties for leaks, and companies may face fines of 4% of their revenue. 4. **Employee trust crisis**: Leaks can easily lead to employee lawsuits, strikes or resignation waves. If you need more specific case analysis or legal details, you can discuss it further.