Incident tracker

Recent cyber attacks and data breaches

DisclosedCompanyWhat happenedTypeRecordsSource
2025-12-01Zilvia.netZilvia.net: a data breach

In November 2025, data breached from the Zilvia.net Nissan 240SX Silvia and Z Fairlady car forum was leaked. The breach exposed 288k unique email addresses along with usernames, IP addresses and salted MD5 password hashes sourced from the vBulletin based platform. Attempts to contact Zilvia.net about the incident were unsuccessful.

Data breach
287,863Have I Been Pwned
2025-11-27China Software Developer NetworkChina Software Developer Network: a data breach

In 2011, the China Software Developer Network (CSDN) suffered a data breach that exposed over 6M user records . The data included email addresses alongside usernames and plain text passwords.

Data breach
6,414,990Have I Been Pwned
2025-11-23CodeStepByStepCodeStepByStep: a data breach

In November 2025, the online coding practice tool CodeStepByStep suffered a data breach that exposed 17k records which were subsequently published online . The following month, a further corpus of data was released bringing the total to 103k. The impacted data included names, usernames and email addresses.

Data breach
103,077Have I Been Pwned
2025-11-23ADDAADDA: a data breach

In March 2025, data allegedly breached from the ADDA housing societies service was posted to a public hacking forum . The data contained over 1.8M unique email addresses along with names, phone numbers and MD5 password hashes.

Data breach
1,829,314Have I Been Pwned
2025-11-20International Kiteboarding OrganizationInternational Kiteboarding Organization: a data breach

In November 2025, the International Kiteboarding Organization suffered a data breach that exposed 340k user records . The data was subsequently listed for sale on a hacking forum and included email addresses, names, usernames and in many cases, the user's city and country.

Data breach
340,349Have I Been Pwned
2025-11-20Beckett CollectiblesBeckett Collectibles: a data breach

In November 2025, Beckett Collectibles experienced a data breach accompanied by website content defacement . The stolen data was later advertised for sale on a prominent hacking forum, with portions subsequently released publicly. The publicly circulating data initially included more than 500k email addresses reportedly belonging to North American customers, before a larger corpus of over 1M addresses was published the following month. The impacted data included names, usernames, phone numbers and physical addresses.

Data breach
1,041,238Have I Been Pwned
2025-11-20EurofiberEurofiber: a data breach

In November 2025, Eurofiber France disclosed a data breach of its ticket management platform . Data containing 10k unique email addresses and a smaller number of names and phone numbers was subsequently leaked. A threat actor claiming responsibility for the breach alleges to have additional, more sensitive data including screenshots, VPN configuration files, credentials, source code, certificates, archives, and SQL backup files.

Data breach
10,003Have I Been Pwned
2025-11-20VultrVultr: a data breach

In March 2023, the "AI-first global cloud platform" Vultr disclosed a security incident at a third-party vendor . Dating back to the previous year, the incident was attributed to the ActiveCampaign email marketing service provider and resulted in the exposure of 188k unique email addresses. A small number of records also included name, IP address and country of origin. No Vultr systems or additional customer data were impacted. Vultr subsequently self-submitted the impacted data to HIBP.

Data breach
187,872Have I Been Pwned
2025-11-13Operation Endgame 3.0Operation Endgame 3.0: data obtained by malware

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.

Data breach
2,046,030Have I Been Pwned
2025-11-08TISZA VilágTISZA Világ: a data breach

In late October 2025, data breached from the Hungarian political party TISZA was published online before being extensively redistributed . Stemming from a compromise of the TISZA Világ service earlier in the month, the breach exposed 200k records of personal data including email addresses along with names, phone numbers and physical addresses.

Data breach
198,520Have I Been Pwned

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