Data Breach Quiz

What is a data breach?

• An incident where data is securely stored

• An incident where data is shared with authorized individuals

• An incident where sensitive data is potentially viewed, stolen, or used by unauthorized individuals

• An incident where data is deleted permanently

Answer explanation

A data breach occurs when sensitive data is accessed, stolen, or misused by unauthorized individuals, making the correct choice the one that highlights this risk.

When did the Yahoo security breach occur?

• 2010-11

• 2013-14

• 2015-16

• 2017-18

Answer explanation

The Yahoo security breach occurred between 2013 and 2014, affecting over 3 billion accounts. This makes '2013-14' the correct answer, as the other options do not align with the timeline of the breach.

How many user accounts were impacted by the Yahoo security breach?

• 1 billion

• 2 billion

• 3 billion

• 4 billion

Answer explanation

The Yahoo security breach affected 3 billion user accounts, making it one of the largest data breaches in history. This figure surpasses the other options, confirming that 3 billion is the correct answer.

What type of information was compromised in the Yahoo breach?

• Credit card numbers

• Social security numbers

• Real names, e-mail addresses, dates of birth, and telephone numbers

• Bank account details

Answer explanation

The Yahoo breach compromised real names, e-mail addresses, dates of birth, and telephone numbers. Credit card numbers, social security numbers, and bank account details were not included in the data that was leaked.

Who was initially suspected to be behind the Yahoo breach?

• A rival company

• A state-sponsored actor

• An insider

• A hacker group

Answer explanation

Initially, the Yahoo breach was attributed to a state-sponsored actor due to the scale and sophistication of the attack, which suggested involvement from a nation-state rather than individual hackers or rival companies.

What was the financial impact on Yahoo's sale price to Verizon after the breach?

• $100 million

• $200 million

• $350 million

• $500 million

Answer explanation

The breach significantly affected Yahoo's valuation, leading to a reduction in the sale price to Verizon by $350 million, highlighting the financial repercussions of security vulnerabilities.

When did the Adult Friend Finder security breach occur?

• October 2015

• October 2016

• October 2017

• October 2018

Answer explanation

The Adult Friend Finder security breach occurred in October 2016, when hackers exposed the personal data of millions of users, making it a significant event in cybersecurity history.

How many accounts were impacted by the Adult Friend Finder breach?

• 100 million

• 200 million

• 412.2 million

• 500 million

Answer explanation

The Adult Friend Finder breach affected approximately 412.2 million accounts, making it one of the largest data breaches in history. This figure surpasses the other options provided.

What type of site is Adult Friend Finder?

• Social media site

• Dating site

• E-commerce site

• News site

Answer explanation

Adult Friend Finder is primarily a dating site designed for individuals seeking casual relationships and hookups, distinguishing it from social media, e-commerce, or news sites.

What kind of data was stolen in the Adult Friend Finder breach?

• Credit card information

• Medical records

• Names, e-mail addresses, and passwords

• Social security numbers

Answer explanation

In the Adult Friend Finder breach, hackers accessed sensitive user data, specifically names, e-mail addresses, and passwords. This information is critical for identity theft and unauthorized access, unlike credit card info or medical records.