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2013 breach
- In what is considered the largest data breach in history, all 3 billion Yahoo user accounts were compromised by a 2013 breach that went undetected for three years.
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The 2013 data breach occurred on Yahoo servers in August 2013 and affected all three billion user accounts. The 2014 breach affected over 500 million user accounts. Both breaches are considered the largest ever discovered and included names, email addresses, phone numbers, birth dates, and security questions—both encrypted and unencrypted ...
- Ivana Vojinovic
- Yahoo! Data Breach. Year of breach: 2013 – 2016. Data breached: 3 billion user accounts. According to data breach statistics, the largest data breach in history is the one that Yahoo!
- Collection #1-5 Data Breach. Year of breach: 2019. Data breached: 2.2 billion usernames and associated passwords. 2019 kicked off with a massive data breach when the so-called Collection #1 database surfaced in mid-January.
- Aadhaar Data Breach. Year of breach: 2018. Data breached: identity and biometric information of 1.1 billion Indian citizens. The Aadhaar breach is the perfect example of a massive cybersecurity incident if ever there was one.
- First American Financial Corp. Data Breach. Year of breach: 2019. Data breached: 885 million records. First American Financial Corp., the largest title insurance provider in the US, exposed 885 million records in one of the biggest data breaches of 2019.
Oct 4, 2017 · Three billion accounts at Yahoo were affected by a massive hack in 2013, the internet firm's parent company, Verizon , revealed Tuesday. That's up from the roughly one billion when Yahoo first...
- Yahoo! Date: 2013-2016. Impact: Over 3 billion user accounts exposed. The data breach of Yahoo is one of the worst and most infamous cases of a known cyberattack and currently holds the record for the most people affected.
- Microsoft. Date: January 2021. Impact: 30,000 US companies (60,000 companies worldwide) In one of the largest cyberattacks in US history, over 30,000 US businesses were affected by a sweeping attack on the Microsoft Exchange email servers, one of the largest email servers in the world.
- Real Estate Wealth Network. Date: December 2023. Impact: 1.5 billion records leaked. In one of the largest leaks in US history, a New York-based online real estate education platform, Real Estate Wealth Network, exposed more than 1.5 billion records in their database to the public.
- First American Financial Corp. Date: May 2019. Impact: 885 million file records leaked. In 2019, First American Financial Corp. suffered a major data leak due to poor data security measures and faulty website design.
Sep 22, 2016 · Contrary to earlier reports, the data set contained 500 million accounts, not 200 million, making it the largest data breach on record. Yahoo said it believed the theft was performed by "a...
- Tech Media Network (Tom's Guide)
Sep 22, 2016 · At least 500 million user accounts have been stolen from Yahoo, the company confirmed on Thursday. The data breach is the largest from a single site in history, according to a database of...
Oct 4, 2017 · A single click was all it took to launch one of the biggest data breaches ever. Credit: Martyn Williams. One mistaken click. That’s all it took for hackers aligned with the Russian state security...
