Apollo

In July 2018, the sales engagement startup Apollo left a database containing billions of data points publicly exposed without a password. The data was discovered by security researcher Vinny Troia who subsequently sent a subset of the data containing 126 million unique email addresses to Have I Been Pwned. The data left exposed by Apollo was used in their "revenue acceleration platform" and included personal information such as names and email addresses as well as professional information inclu

Record: 125.9 million

LinkedIn Scraped Data

During the first half of 2021, LinkedIn was targeted by attackers who scraped data from hundreds of millions of public profiles and later sold them online. Whilst the scraping did not constitute a data breach nor did it access any personal data not intended to be publicly accessible, the data was still monetised and later broadly circulated in hacking circles. The scraped data contains approximately 400M records with 125M unique email addresses, as well as names, geographic locations, genders a

Record: 125.7 million

Gravatar

In October 2020, a security researcher published a technique for scraping large volumes of data from Gravatar, the service for providing globally unique avatars . 167 million names, usernames and MD5 hashes of email addresses used to reference users' avatars were subsequently scraped and distributed within the hacking community. 114 million of the MD5 hashes were cracked and distributed alongside the source hash, thus disclosing the original email address and accompanying data. Following the im

Record: 114.0 million

Badoo

In June 2016, a data breach allegedly originating from the social website Badoo was found to be circulating amongst traders. Likely obtained several years earlier, the data contained 112 million unique email addresses with personal data including names, birthdates and passwords stored as MD5 hashes. Whilst there are many indicators suggesting Badoo did indeed suffer a data breach, the legitimacy of the data could not be emphatically proven so this breach has been categorised as "unverified".

Record: 112.0 million

Pemiblanc

In April 2018, a credential stuffing list containing 111 million email addresses and passwords known as Pemiblanc was discovered on a French server. The list contained email addresses and passwords collated from different data breaches and used to mount account takeover attacks against other services. Read more about the incident.

Record: 111.0 million

B2B USA Businesses

In mid-2017, a spam list of over 105 million individuals in corporate America was discovered online. Referred to as "B2B USA Businesses", the list categorised email addresses by employer, providing information on individuals' job titles plus their work phone numbers and physical addresses. Read more about spam lists in HIBP.

Record: 105.1 million

Evite

In April 2019, the social planning website for managing online invitations Evite identified a data breach of their systems. Upon investigation, they found unauthorised access to a database archive dating back to 2013. The exposed data included a total of 101 million unique email addresses, most belonging to recipients of invitations. Members of the service also had names, phone numbers, physical addresses, dates of birth, genders and passwords stored in plain text exposed. The data was provided

Record: 101.0 million

VK

In approximately 2012, the Russian social media site known as VK was hacked and almost 100 million accounts were exposed. The data emerged in June 2016 where it was being sold via a dark market website and included names, phone numbers email addresses and plain text passwords.

Record: 93.3 million

MyHeritage

In October 2017, the genealogy website MyHeritage suffered a data breach. The incident was reported 7 months later after a security researcher discovered the data and contacted MyHeritage. In total, more than 92M customer records were exposed and included email addresses and salted SHA-1 password hashes. In 2019, the data appeared listed for sale on a dark web marketplace (along with several other large breaches) and subsequently began circulating more broadly. The data was provided to HIBP by

Record: 92.0 million

Youku

In late 2016, the online Chinese video service Youku suffered a data breach. The incident exposed 92 million unique user accounts and corresponding MD5 password hashes. The data was contributed to Have I Been Pwned courtesy of rip@creep.im.

Record: 91.9 million