In November 2020, a collection of more than 23,000 allegedly breached websites known as Cit0day were made available for download on several hacking forums. The data consisted of 226M unique email address alongside password pairs, often represented as both password hashes and the cracked, plain text versions. Independent verification of the data established it contains many legitimate, previously undisclosed breaches. The data was provided to HIBP by dehashed.com.
In late 2021, email address and plain text password pairs from the rap mixtape website DatPiff appeared for sale on a popular hacking forum. The data allegedly dated back to an earlier breach and in total, contained almost 7.5M email addresses and cracked password pairs. The original data source allegedly contained usernames, security questions and answers and passwords stored as MD5 hashes with a static salt.
In early 2021, the Polish torrents website Devil-Torrents.pl suffered a data breach. A subset of the data including 63k unique email addresses and cracked passwords were subsequently socialised on a popular data breach sharing service.
In September 2016, the new eThekwini eServices website in South Africa was launched with a number of security holes that lead to the leak of over 98k residents' personal information and utility bills across 82k unique email addresses. Emails were sent prior to launch containing passwords in plain text and the site allowed anyone to download utility bills without sufficient authentication. Various methods of customer data enumeration was possible and phishing attacks began appearing the day after launch.
In October 2017, the Malaysian website lowyat.net ran a story on a massive set of breached data affecting millions of Malaysians after someone posted it for sale on their forums. The data spanned multiple separate breaches including the JobStreet jobs website which contained almost 4 million unique email addresses. The dates in the breach indicate the incident occurred in March 2012. The data later appeared freely downloadable on a Tor hidden service and contained extensive information on job seekers including names, genders, birth dates, phone numbers, physical addresses and passwords.
In May 2016, LinkedIn had 164 million email addresses and passwords exposed. Originally hacked in 2012, the data remained out of sight until being offered for sale on a dark market site 4 years later. The passwords in the breach were stored as SHA1 hashes without salt, the vast majority of which were quickly cracked in the days following the release of the data.
In July 2017, the Czech Republic e-commerce site MALL.cz suffered a data breach after which 735k unique accounts including email addresses, names, phone numbers and passwords were later posted online. Whilst passwords were stored as hashes, a number of different algorithms of varying strength were used over time. All passwords included in the publicly distributed data were in plain text and were likely just those that had been successfully cracked (members with strong passwords don't appear to be included). According to MALL.cz, the breach only impacted accounts created before 2015.
In June 2014, the Manga trading website Mangatraders.com had the usernames and passwords of over 900k users leaked on the internet (approximately 855k of the emails were unique). The passwords were weakly hashed with a single iteration of MD5 leaving them vulnerable to being easily cracked.
In October 2013, the (now defunct) downloads website "Mecho Download" suffered a data breach that exposed 438k records. Data from the vBulletin based website included email and IP addresses, usernames and passwords stored as salted MD5 hashes.
In March 2016, the adult website Naughty America was hacked and the data consequently sold online. The breach included data from numerous systems with various personal identity attributes, the largest of which had passwords stored as easily crackable MD5 hashes. There were 1.4 million unique email addresses in the breach.
In late 2015, the gaming website R2Games was hacked and more than 2.1M personal records disclosed. The vBulletin forum included IP addresses and passwords stored as salted hashes using a weak implementation enabling many to be rapidly cracked. A further 11M accounts were added to "Have I Been Pwned" in March 2016 and another 9M in July 2016 bringing the total to over 22M.
In September 2016, the real estate investment site Real Estate Mogul had a Mongo DB instance compromised and 5GB of data downloaded by an unauthorised party. The data contained real estate listings including addresses and the names, phone numbers and 308k unique email addresses of the sellers. Real Estate Mogul was advised of the incident in September 2018 and stated that they "found no instance of user account credentials like usernames and passwords nor billing information within this file". 2b1af7f3a8