Brazilian authorities announced an investigation into the misuse of Facebook data by Cambridge Analytica, which allegedly used data from 50 million users without consent to influence the U.S. presidential campaign. This has raised concerns in Brazil, a major social media user. Facebook's CEO, Mark Zuckerberg, acknowledged mistakes and expressed willingness to ensure the integrity of Brazil's elections, even offering to testify before the Brazilian Congress if needed.

What prompted Brazilian authorities to launch an investigation?

• A new social media platform launch

• The misuse of Facebook data by Cambridge Analytica

• A data breach at a Brazilian bank

• An election scandal in Brazil

How many Facebook users' data was allegedly used by Cambridge Analytica without consent?

• 100 million

• 50 million

• 25 million

• 10 million

Why are many people in Brazil concerned about the data misuse?

• It caused a major political scandal in Brazil

• It led to a rise in cybercrime

• The data breach affected their banking information

• Brazil is a leading country in social media usage

What did Mark Zuckerberg admit regarding Facebook's handling of user data?

• Facebook has always protected user data

• The company will shut down its operations in Brazil

• The company made mistakes and needs to improve

• Facebook will stop collecting user data

What action did Zuckerberg say he might take to address the issue in Brazil?

• Launch a new data privacy policy

• Donate to Brazilian charities

• Testify before the Brazilian Congress

• Visit Brazil to apologize