In August 2017, a spambot by the name of Onliner Spambot was identified by security researcher Benkow moʞuƎq. The malicious software contained a server-based component located on an IP address in the Netherlands which exposed a large number of files containing personal information. In total, there were 711 million unique email addresses, many of which were also accompanied by corresponding passwords. A full write-up on what data was found is in the blog post titled Inside the Massive 711 Million Record Onliner Spambot Dump.

In September 2021, the domain registrar and web host Epik suffered a significant data breach, allegedly in retaliation for hosting alt-right websites. The breach exposed a huge volume of data not just of Epik customers, but also scraped WHOIS records belonging to individuals and organisations who were not Epik customers. The data included over 15 million unique email addresses (including anonymised versions for domain privacy), names, phone numbers, physical addresses, purchases and passwords stored in various formats.

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.

In October 2016, the Minecraft banning service known as MCBans suffered a data breach resulting in the exposure of 120k unique user records. The data contained email and IP addresses, usernames and password hashes of unknown format. The site was previously reported as compromised on the Vigilante.pw breached database directory.

In September 2016, over 16GB of logs from a service indicated to be digimon.co.in were obtained, most likely from an unprotected Mongo DB instance. The service ceased running shortly afterwards and no information remains about the precise nature of it. Based on enquiries made via Twitter, it appears to have been a mail service possibly based on PowerMTA and used for delivering spam. The logs contained information including 7.7M unique email recipients (names and addresses), mail server IP addresses, email subjects and tracking information including mail opens and clicks.