Incidents at named organisations, each linked to the source that reported it: material incident filings companies made to the SEC, breaches verified by Have I Been Pwned, and claims posted by ransomware groups.
This view includes organisations named on ransomware leak sites. Those are the groups’ claims, not confirmed breaches — the organisations have not confirmed them and no filing or verified record supports them.
In early 2026, data purportedly sourced from the recipe and meal planning service Provecho was alleged to have been obtained in a breach. The exposed data included 713k unique email address along with username and the creator account holders followed. Provecho has been notified and is aware of the claims surrounding the incident.
In September 2025, Prosper announced that it had detected unauthorised access to their systems, which resulted in the exposure of customer and applicant information . The data breach impacted 17.6M unique email addresses, along with other customer information, including US Social Security numbers. Prosper advised that they did not find any evidence of unauthorised access to customer accounts and funds, and that their customer-facing operations were uninterrupted. Further information about the incident is contained in Prosper's FAQs .
In April 2026, the hacking collective ShinyHunters claimed to have obtained data from Pitney Bowes as part of a broader extortion campaign that also named several other organisations. After negotiations allegedly failed, the group publicly released the data which included 8.2M unique email addresses, along with names, phone numbers and physical addresses. A subset of the data also included Pitney Bowes employee records with job titles.
In December 2025, data from France's Pass'Sport program was posted to a popular hacking forum . Initially misattributed to CAF (the French family allowance fund), the data contained 6.5M unique email addresses affecting 3.5M households. The data also included names, phone numbers, genders and physical addresses. The Ministry of Sports subsequently released a statement acknowledging the incident .
In January 2026, Panera Bread suffered a data breach that exposed 14M records . After an attempted extortion failed, the attackers published the data publicly, which included 5.1M unique email addresses along with associated account information such as names, phone numbers and physical addresses. Panera Bread subsequently confirmed that "the data involved is contact information" and that authorities were notified.
In March 2026, hackers claimed they had obtained data from the gig economy platform Paidwork which they then listed for sale . Almost 11GB of data allegedly obtained from the platform was subsequently posted publicly in July and contained over 23M unique email addresses. The breach also included a broad range of other data relating to the operation of the platform including user profile data, banking information, payout history for workers and passwords stored as bcrypt hashes.
In August 2026, Australian beauty retailer Oz Hair and Beauty was the target of an xpl0itrs extortion attack . The group subsequently published data allegedly obtained from the company, which included 2M unique email addresses along with names, phone numbers, geographic locations (suburb and postcode) and purchases.
On 18 June 2026, the latest phase of Operation Endgame targeted the SocGholish malware operation , a prolific malware distribution network used to compromise systems and facilitate further cybercrime. Coordinated by international law enforcement agencies with support from Europol and Eurojust, the operation remediated almost 15,000 compromised websites and disrupted more than 100 servers and domains used to distribute malware. Authorities initially provided HIBP with 154k impacted email addresses and more than half a million previously unseen passwords. The following week, a further 4M email addresses and 9M passwords relating to the StealC malware operation also targeted by Operation Endgame were provided, followed by another 131k email addresses the following month, bringing the total to more than 4.3M unique email addresses.
Between 10 and 13 November 2025, the latest phase of Operation Endgame was coordinated from Europol's headquarters in The Hague . The actions targeted one of the biggest infostealer Rhadamanthys, the Remote Access Trojan VenomRAT, and the botnet Elysium, all of which played a key role in international cybercrime. Authorities took down these three large cybercrime enablers and provided 2 million impacted email addresses and 7.4 million passwords to HIBP.
In February 2026, Dutch telco Odido was the victim of a data breach and subsequent extortion attempt . Shortly after, a total of 6M unique email addresses were published across four separate data releases over consecutive days. The exposed data includes names, physical addresses, phone numbers, bank account numbers, dates of birth, customer service notes and passport, driver’s licence and European national ID numbers. Odido has published a disclosure notice including an FAQ to support affected customers.
In July 2025, the German news service NIUS suffered a data breach which was subsequently leaked publicly . The data included 6k unique email addresses along with names, physical addresses and payment details for purchases including either IBANs or partial credit card data (masked card number, type and expiry).
In October 2025, the data of almost 4M MyVidster users was posted to a public hacking forum . Separate to the 2015 breach, this incident exposed usernames, email addresses and in a small number of cases, profile photos.
In April 2026, the luxury fashion e-commerce platform Mytheresa was listed as a victim of the ShinyHunters "pay or leak" extortion group . After the ransom deadline passed, the group publicly released the data which contained 84k unique email addresses. The exposed data also included names, phone numbers, physical addresses, purchases and partial credit card data including card type, last 4 digits and expiry date.
In April 2026, the NSFW AI girlfriend platform My Lovely AI suffered a data breach that exposed over 100k users . The data included user-created prompts and links to the resulting AI-generated images, along with a small number of Discord and X usernames.
In June 2026, Moody Bible Institute was targeted by a ShinyHunters "pay or leak" extortion campaign . Over 2.3M unique email addresses and other personal data were later published publicly, including names, physical addresses, phone numbers, dates of birth and other information relating to donors, supporters, students and alumni. In their disclosure notice , Moody advised that they had "engaged both internal and external cybersecurity experts to thoroughly investigate the matter".
In August 2025, the Swedish system supplier Miljödata was the victim of a ransomware attack . Following the attack, data was subsequently published on the dark web and included 870k unique email addresses across various compromised files. Data also included names, phone numbers, physical addresses, dates of birth and government-issued personal identity numbers.
In April 2026, education company McGraw Hill confirmed a data breach following an extortion attempt . Attributed to a Salesforce misconfiguration, the company stated the incident exposed "a limited set of data from a webpage hosted by Salesforce on its platform". More than 100GB of data was later publicly distributed, containing 13.5M unique email addresses across multiple files, with additional fields such as name, physical address and phone number appearing inconsistently across some records.
In April 2026, the commercial real estate brokerage firm Marcus & Millichap was named as one of multiple alleged victims of the ShinyHunters hacking and extortion group . Data alleged to have been obtained from the company was subsequently released publicly and included 1.8M unique email addresses, along with names, phone numbers and employment-related information including employer, job title and physical company address. In their disclosure notice , Marcus & Millichap advised that data which may have been accessed appeared limited to "company forms, templates, marketing materials, and general contact information".
In August 2026, Manchester Airports Group (MAG) disclosed a data breach impacting their services . The incident was later claimed by the FulcrumSec hacking group , who subsequently published email addresses and phone numbers relating to 8.8M customers of Manchester, Stansted and East Midlands airports. The data contained personal information relating to airport services, including vehicle registrations and parking history, Fast Track purchases and lounge bookings. In their disclosure notice , MAG advised that "at no point has passenger safety or aviation security been compromised".
In June 2026, the sports and entertainment company Madison Square Garden Sports was the target of a ShinyHunters "pay or leak" extortion campaign . The group later published the alleged data, which included almost 10M unique email addresses spanning staff and customers, along with extensive personal, employment and customer relationship information.
In February 2026, the couples and relationship app Lovora allegedly suffered a data breach that exposed 496k unique email addresses. The data also included users’ display names and profile photos, along with other personal information collected through use of the app. The app’s maker, Plantake, did not respond to multiple attempts to contact them about the incident.
In April 2026, the commercial residential and ISP proxy network LegionProxy suffered a data breach . The incident exposed 10k email addresses, bcrypt password hashes, names and purchases.
In August 2022, the Latest Pilot Jobs website suffered a data breach that later appeared on a popular hacking forum before being redistributed as part of a larger corpus of data . The data included 119k unique email addresses along with names, usernames and unsalted MD5 password hashes.
In February, the AI-powered comic generation platform KomikoAI suffered a data breach . The incident exposed 1M unique email addresses along with names, user posts and the AI prompts used to generate content. The exposed data enables the mapping of individual AI prompts to specific email addresses.
In March 2021, the Russian online streaming service KinoKong suffered a data breach that was later redistributed as part of a larger corpus of data . The breach exposed over 800k unique email addresses along with names, usernames, IP addresses and MD5 password hashes.
Filings come from SEC EDGAR and are filtered to 8-K submissions that declare Item 1.05, not merely mention it. Breach records come from Have I Been Pwned. Ransomware claims come from RansomLook, used under CC BY 4.0; we store metadata only and never leak links.