BreachForums Data Breach and Dark Web Data Leaks
A major data breach has exposed the entire user database of BreachForums, a prominent English-language hacking forum on the dark web. The breach was announced on the shinyhunte[.]rs platform, which published a message and made the leaked database available for download and analysis. BreachForums, which had previously replaced RaidForums after its seizure, has been a central hub for cybercriminal activity, including the distribution of stolen data and hacking tools. The forum has faced multiple shutdowns and seizures, but continued to operate under new management and through various hosting providers and domains.
In addition to the BreachForums breach, recent activity on dark web forums has included the sale and sharing of data from a South Korean university and a Saudi Arabian employment platform. These incidents highlight the ongoing risks posed by data leaks and breaches on dark web marketplaces, where sensitive information is traded and discussed. Security researchers have made related indicators of compromise (IOCs) and analysis available to subscribers, emphasizing the need for vigilance among organizations whose data may be exposed in such forums.
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How this story unfolded
6 events from the most recent confirmed update back to the earliest known activity.
Have I Been Pwned adds the BreachForums breach
Have I Been Pwned added the BreachForums incident to its breach corpus, identifying it as a 2025 breach. HIBP reported that the exposure affected 672,000 unique email addresses across all database tables, including 324,000 from the users table alone.
BreachForums administrator acknowledges old August 2025 exposure
BreachForums administrator "N/A" publicly acknowledged the incident and said the leaked data came from an older August 2025 exposure rather than a fresh compromise. The administrator apologized and attributed the leak to an unsecured folder used during restoration.
Manifesto and administrator PGP key released with leak
Alongside the database leak, the leaker published a manifesto attributed to "James" and released a BreachForums administrator PGP private key. Researchers said the materials were presented as evidence supporting the leak's authenticity, though some claims in the manifesto were unverified.
BreachForums user database leaked on shinyhunte.rs
A database containing roughly 323,986 to 323,988 BreachForums user records was publicly posted on shinyhunte[.]rs by an individual calling themselves "James." The leak exposed usernames, email addresses, password hashes, registration data, and some IP-related information, creating major deanonymization risk for forum users.
Law enforcement coalition takes BreachForums offline
A reincarnated version of BreachForums was taken offline in October 2025 by a coalition of law enforcement agencies. This followed repeated prior shutdowns and pressure on the forum's operators.
BreachForums backup exposed during restoration process
During restoration work after the breachforums[.]hn shutdown, a backup containing the forum's user table and administrator PGP key was reportedly left in an unsecured, publicly accessible folder. Multiple reports and BreachForums administrator "N/A" said this exposure occurred in August 2025 and was the source of the later leak.
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Sources
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BreachForums Data Breach Exposes 324,000 User Records After MyBB Misconfiguration in 2026
rescana.com
Open sourceInfamous BreachForums forum breached, spilling data on 325K users
go.theregister.com
Open sourceBreachForums database leak exposes over 320,000 users
scworld.com
Open sourceNotorious BreachForums hacking site hit by ‘doomsday’ leak of 324,000 criminal users
csoonline.com
Open sourceBreachForums Breached, Exposing 324K Cybercriminals
darkreading.com
Open sourceBreachForums Hacking Forum Database Leak: Analysis of the 324,000 Account Exposure Incident (January 2026)
rescana.com
Open sourceBreachForums hacking forum database leaked, exposing 324,000 accounts
bleepingcomputer.com
Open sourceDoomsday for Cybercriminals — Data Breach of Major Dark Web Forum
resecurity.com
Open sourceRansom & Dark Web Issues Week 1, January 2026
asec.ahnlab.com
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BreachForums Breaches Expose User Data After MyBB Zero-Day Compromise
BreachForums suffered repeated compromises that exposed member data across multiple iterations of the cybercrime forum. An earlier breach leaked details on about **4,000 members**, while a later incident tied to the forum's reboot reportedly spilled data on roughly **325,000 users**, underscoring the scale of exposure affecting one of the most prominent underground marketplaces. Reporting on the more recent compromise said the forum was hit through a **MyBB `0-day`** affecting unpatched software, with forum administrators claiming the intrusion was also linked to a broader law-enforcement crackdown. The incident disrupted the platform, prompted leadership changes including the emergence of a new admin, and highlighted how even criminal forums remain vulnerable to the same software flaws, operational failures, and data-security lapses that they routinely exploit in others.
May 25, 2026
ShinyHunters Leaks 300,000 BreachForums User Records After Exiting Forum
ShinyHunters said it has abandoned **BreachForums** and released an updated database affecting more than **300,000 users** of the cybercrime marketplace. Reports say the leak goes beyond basic credentials and includes full account profile and activity data, including usernames, email addresses, hashed passwords, salts, IP addresses, login metadata, and forum activity timestamps. The group said maintaining the forum ecosystem became a "waste of time" after the FBI seizure of BreachForums and claimed that all currently active BreachForums domains are fake. ShinyHunters also threatened to publish fuller backups — including private messages, posts, and additional user data — unless the remaining forums shut down, while asserting it holds exploits for all **MyBB 1.8** versions; the identity of the operators behind current BreachForums instances remains unclear, with speculation ranging from opportunistic criminals to possible law enforcement honeypots.
Apr 30, 2026
BreachForums Reboot Emerges Under Suspect Admin as 918 Stolen Databases Leak
A new **BreachForums** reboot appeared online with an administrator using the handle **"X"**, who claimed the forum had been rebuilt after its infrastructure, database, and source code were hacked from a hosting server and the prior operator **"N/A"** abandoned the project. The alleged revival was quickly disputed: **ShinyHunters** publicly denied any role in the new site and said it had not operated BreachForums since the FBI seizure in October 2025. Researchers also pointed to inconsistencies in X's account, raising doubts about whether the latest site is a legitimate successor, a copycat operation, or a setup using leaked forum data. The confusion comes amid a broader compromise tied to the BreachForums ecosystem, including the leak on Telegram of **918 databases** previously sold through the forum. Reporting said the exposed trove contains personal and sensitive data from numerous historical breaches, creating renewed opportunities for **phishing, ransomware, and espionage**. Multiple BreachForums-branded sites are now online, complicating attribution and increasing the possibility that some may be impersonation efforts, criminal competition, or potential law enforcement honeypots following repeated takedowns of major cybercrime forums.
Apr 5, 2026