WorksheetsData Breaches in USA
Total questions: 15
Worksheet time: 5mins
1. Which company experienced the largest data breach in history, affecting over 3 billion user accounts?
Microsoft
Yahoo!
How did Russian hackers gain access to Yahoo’s database?
They used phishing emails
They exploited backdoors, stolen backups, and access cookies
They installed malware on Yahoo’s website
They hacked into Yahoo’s cloud servers
What was the main cause of the Microsoft Exchange Server breach in 2021?
Weak passwords used by employees
A third-party software vulnerability
Four different zero-day vulnerabilities
An insider attack by a former employee
What was the main issue that led to First American Financial Corp.’s data leak?
A malware attack
A phishing scam
A website design flaw that didn’t require authentication
A breach of cloud storage
What was one of the main security flaws that led to the Facebook breach in April 2021?
A ransomware attack
A vulnerability in the contact-syncing tool
Employees reusing old passwords
A breach in Facebook's advertising system
How were hackers able to scrape data from 700 million LinkedIn accounts in April 2021?
They exploited LinkedIn’s API
They used brute force attacks
They created fake job postings
They hacked into LinkedIn’s cloud servers
What key mistake did MySpace make that allowed 360 million user accounts to be compromised?
Using outdated antivirus software
Using an unsalted SHA-1 hash to encrypt passwords
Storing user data on an unsecured cloud server
Employees accidentally leaking login credentials
What was the primary method hackers used to breach Home Depot’s payment system in 2014?
They sent phishing emails to customers
They installed malware on the company’s point-of-sale (POS) systems
They stole employee login credentials
They hacked Home Depot’s website
What major flaw in Adobe’s security allowed 38 million credit card numbers to be stolen in 2013?
The breach was caused by a phishing scam
Adobe used the same encryption key for all users
Hackers guessed user passwords through brute force attacks
A third-party contractor leaked customer information
In 2014, which online retailer suffered a data breach that compromised 145 million user accounts?
Amazon
eBay
Walmart
Best Buy
What mistake did River City Media make that exposed 1.4 billion records?
A phishing attack on employees
A failure to renew security certificates
eaving their database unprotected with no password
Using outdated encryption methods
What type of cyberattack was responsible for the 2008 Heartland Payment Systems breach?
Ransomware
SQL Injection
Phishing
Zero-day exploit
Exactis suffered a breach in 2018 that leaked what kind of data?
Only financial records
Social Security numbers
Detailed personal information, including political and religious affiliations
Only usernames and passwords
What was one of the most sensitive pieces of data stolen in the 2018 Marriott International data breach?
Passport numbers
Customer IP addresses
Credit card CVV codes
Employee payroll information
Which U.S. government agency accused China of being responsible for the 2021 Microsoft Exchange Server breach?
FBI
CIA
NSA
SEC
