Data Breach Database
Tracking the biggest security incidents, response timelines, and their impact on users.
49 Breaches Tracked49 results
Equifax 2017 Data Breach: 147 Million Records Exposed
One of the largest and most consequential data breaches in history, exposing Social Security numbers and financial data ...
Equifax 2017 Data Breach Timeline: From Vulnerability to $700M Settlement
The timeline reveals Equifax had months to patch the vulnerability before exploitation and failed to detect the intrusio...
Equifax 2017 Data Breach: What to Do If Your Data Was Exposed
If your data was exposed in the Equifax breach, take immediate steps to protect against identity theft including credit ...
Equifax 2017 Breach Affected Users: Who Was Impacted and How
The Equifax breach affected approximately 147 million Americans, 15.2 million UK consumers, and Canadian consumers, expo...
Equifax 2017 Breach Compensation: $700 Million Settlement Details
The $700 million FTC settlement included a consumer restitution fund of up to $425 million, with individual claims up to...
Yahoo 2013 Data Breach: All 3 Billion Accounts Compromised
The largest data breach ever disclosed, affecting all 3 billion Yahoo accounts. Initially disclosed as 1 billion account...
Yahoo 2013 Data Breach Timeline: Three Years of Undetected Access
The breach went undetected for three years, was disclosed in stages, and ultimately affected every Yahoo account — all 3...
Yahoo 2013 Breach: What to Do If You Had a Yahoo Account
Every Yahoo account holder was affected. The exposure of security questions and hashed passwords creates ongoing risks, ...
Yahoo 2013 Breach Compensation: $117.5 Million Class Action Settlement
The $117.5 million class action settlement provided credit monitoring and cash payments, though individual amounts were ...
Marriott 2018 Data Breach: 500 Million Starwood Guest Records Exposed
Attackers had access to the Starwood reservation database for four years before detection, exposing up to 500 million gu...
Marriott Data Breach Timeline: Four Years of Undetected Access
The timeline spans four years of undetected access, beginning in Starwood systems two years before Marriott acquisition....
Marriott 2018 Breach: What to Do If Your Data Was Exposed
If you stayed at any Starwood property through September 2018, your data was likely exposed. Passport holders should be ...
Capital One 2019 Data Breach: 106 Million Customer Records Exposed
A former AWS employee exploited a misconfigured web application firewall to access 106 million Capital One customer reco...
Capital One 2019 Breach Timeline: Cloud Misconfiguration to FBI Arrest
The breach timeline shows data was exfiltrated over four months, with the perpetrator openly discussing it online before...
Facebook 2019 Data Exposure: 533 Million User Records Leaked Online
A scraping operation exploited Facebook contact import feature to collect phone numbers and profile data for 533 million...
Facebook 2019 Data Leak: What to Do If Your Phone Number Was Exposed
If your phone number was in the leaked dataset, you face elevated risks of SIM swapping, smishing, and targeted phishing...
LinkedIn 2021 Data Scraping: 700 Million User Profiles Exposed
API exploitation allowed scraping of 700 million LinkedIn profiles (93% of all users), exposing professional and persona...
T-Mobile 2023 Data Breach: 37 Million Customers Affected
T-Mobile January 2023 breach exposed 37 million customer records through API exploitation, continuing a pattern of repea...
T-Mobile Breach History: A Timeline of Repeated Security Failures
T-Mobile has disclosed at least 9 data breaches since 2018, cumulatively affecting over 100 million customer records....
AT&T 2024 Data Breach: Call and Text Records of Nearly All Customers
Attackers accessed six months of call and text metadata for nearly all AT&T customers through compromised Snowflake clou...
AT&T 2024 Breach: What to Do If Your Call Records Were Exposed
If you were an AT&T customer in 2024, your call and text metadata was likely exposed, revealing who you communicate with...
Change Healthcare 2024 Breach: 100+ Million Health Records Exposed
The Change Healthcare ransomware attack was the most disruptive healthcare cyberattack in US history, exposing health re...
Change Healthcare Breach Timeline: Attack to National Healthcare Disruption
Attackers had access for 9 days before deploying ransomware. A second extortion followed the ransom payment....
23andMe 2023 Data Breach: Genetic and Ancestry Data of 6.9 Million Users
Credential stuffing compromised 14,000 accounts but the DNA Relatives feature amplified the breach to 6.9 million users ...
23andMe 2023 Breach: Protecting Your Genetic Data After the Leak
If you used 23andMe, change your password, enable 2FA, and consider downloading and deleting your genetic data given the...
LastPass 2022 Data Breach: Encrypted Password Vaults Stolen
Attackers stole encrypted password vaults from LastPass, and subsequent cryptocurrency thefts suggest some vaults have b...
LastPass 2022 Breach: Critical Steps to Protect Your Passwords
If you used LastPass, your encrypted vault was stolen. Change all stored passwords immediately starting with financial a...
MGM Resorts 2023 Ransomware Attack: Hotel and Casino Systems Shut Down
A social engineering attack on MGM IT help desk led to full ransomware deployment, shutting down slot machines, hotel sy...
Caesars Entertainment 2023 Breach: $15 Million Ransom Paid
Caesars paid a $15 million ransom to the Scattered Spider group after a social engineering attack compromised loyalty pr...
Snowflake 2024 Breaches: 165+ Organizations Compromised via Stolen Credentials
Attackers used credentials stolen by infostealer malware to access 165+ Snowflake customer environments lacking MFA....
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