Double Counter
October 4, 2026
•[ leak, misconfiguration, technology ]
In October 2026, the Discord server protection service Double Counter suffered a data breach attributed to a vulnerability in the Metabase analytics tool. In its disclosure notice, Double Counter advised that attackers gained access to a subset of its data. A corpus of data was subsequently published publicly and contained 275k unique email addresses and Discord usernames. A small number of records belonging to paying subscribers whose purchases were processed via Stripe were also present and included names, countries and postcodes.
LimeLeads
August 1, 2019
•[ leak, misconfiguration, technology ]
In 2019, the now-defunct B2B marketing leads database service LimeLeads suffered a data breach due to an exposed, unsecured Elasticsearch server. The incident exposed tens of millions of records of largely corporate contact data containing 17.8M unique email addresses, along with phone numbers, employers, job titles and geographic locations including state, city and postcode.
Artvalue.com
June 19, 2019
•[ leak, misconfiguration, retail ]
In June 2019, the France-based art valuation website Artvalue.com (now defunct) left their 158k member subscriber base publicly exposed in a text file on their website. The exposed data included names, usernames, email addresses and passwords stored as MD5 hashes. The site operator did not respond when contacted about the incident, although the exposed file was subsequently removed.
Golf Canada
May 14, 2026
•[ leak, misconfiguration, technology ]
In mid-2026, hundreds of thousands of user records allegedly sourced from Golf Canada began circulating via Telegram. The data included 569k unique email addresses along with names, usernames, dates of birth, genders and approximate geographic locations (city, province and postcode). Golf Canada didn't respond to multiple attempts to make contact, and it remains unclear whether the data was obtained via unintentionally exposed website features or a security vulnerability.
Goose Creek
June 9, 2026
•[ leak, misconfiguration, retail ]
In June 2026, a party claiming to have access to data from Goose Creek Candle Company sent emails to a number of the company's customers, claiming the company had a security vulnerability and suffered a data breach. The data was subsequently sent to Have I Been Pwned and contained 6.6M unique email addresses along with names, phone numbers, physical addresses, order IDs and total spent. The data appears to have been obtained from the company's Shopify instance. Goose Creek is aware of the reports but was unable to provide Have I Been Pwned with any further information at the time of publication.
Senior Dating
November 23, 2024
•[ data breach, exposed database, Firebase ]
In 2024, the 40+ dating website Senior Dating suffered a data breach. Attributed to an exposed Firebase database, the breach included extensive personal information on 766k users of the service including email addresses, photos, genders, links to Facebook accounts, dates of birth and precise latitude and longitude, among other personal attributes. The website was shut down after the breach was acknowledged by the site operator in December, along with a breach of the "ladies.com" website run by the same organisation.
McGraw Hill
April 14, 2026
•[ misconfiguration, data leak, extortion ]
McGraw Hill confirmed that a Salesforce-hosted webpage misconfiguration exposed limited contact data, while ShinyHunters claimed millions of Salesforce records and attempted extortion.
McGraw Hill
April 10, 2026
•[ data breach, extortion, misconfiguration ]
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.
An undisclosed company's cloud environment
November 28, 2025
•[ cloud security, credential exposure, misconfiguration ]
HackRead summarized Sysdig Threat Research Team observations of an attacker taking over an organizations AWS cloud environment on Nov. 28, 2025 in roughly eight minutes. The report described the compromise as being enabled by exposed AWS credentials stemming from a storage/configuration error, and stated the intruder rapidly escalated to full administrative control using automation and AI-assisted workflows.
Multiple organizations with exposed MongoDB databases
January 30, 2026
•[ MongoDB, data breach, ransomware ]
A threat actor actively accessed, queried, and ransacked more than 1400 publicly exposed MongoDB application servers, exfiltrating data and leaving ransom notes demanding payment in exchange for deletion or non-disclosure of the stolen information.
Rochester Public School listserv
May 12, 2025
•[ misconfiguration, insider threat, email abuse ]
Rochester School District officials reported that students and staff were bombarded with sexually explicit and threatening emails after a student exploited a misconfiguration in an email distribution list. The distribution list had been inadvertently configured with broader permissions than intended, allowing a student to send an unauthorized mass message to a large number of student accounts across grade levels. The districts technology team worked to identify the source, recall the messages, and correct the permission setting; students were then blocked from sending to distribution groups. The incident primarily affected communications integrity and student safety, rather than causing extended operational downtime.
Somalia e-Visa Platform
October 20, 2025
•[ data leak, misconfiguration, government ]
Attackers accessed Somalias national e-visa application serverhosted on a misconfigured shared cPanel environmentallowing unauthorized retrieval of more than 125,000 visa applications and associated passport, biometric, contact, and payment data. U.S. and UK government alerts on November 13, 2025, warned that at least 35,000 travelers may have had their information compromised as the breach continued into mid-November.
Tea App
July 25, 2025
•[ data leak, misconfiguration ]
Tea, a women-focused dating and safety app, suffered a breach via a misconfigured Firebase storage bucket, exposing ~72,000 images and up to 1.1M private DMs, later leaked on 4chan; users who signed up before Feb 2024 were affected.
ImagineX Management Company Limited
March 31, 2025
•[ data leak, misconfiguration, outdated systems ]
A breach at the Hong Kong brand-management firm ImagineX Management Company Limited led to the exposure of nearly 128,000 individuals personal data after attackers exploited an unused temporary user account and gained access to the company intranet, with the root cause attributed to outdated operating systems and delayed deletion of temporary accounts
Viva Health Insurance
June 14, 2025
•[ leak, misconfiguration, healthcare ]
Viva Health, an Alabama-based health insurance company headquartered in Birmingham, experienced exposure of a web-accessible file from June 14 to August 27, 2025. The file contained limited PHI for about 4,945 members and was removed upon discovery. No misuse or encryption was reported.
Unnamed U.S. Banking Organization
May 9, 2025
•[ social, misconfiguration, finance ]
ReliaQuest links Scattered Spider to renewed activity against U.S. financial services, including a bank intrusion achieved via social engineering + Azure AD SSPR, followed by lateral movement (Citrix/VPN), ESXi compromise, and cloud data access attempts (Snowflake/AWS).
Wealthsimple
August 30, 2025
•[ hack, misconfiguration, finance ]
A third-party software component was compromised, leading to unauthorized access to sensitive data of a small subset of Wealthsimple clients. Accounts and funds remained secure. Incident was rapidly contained and clients notified.
