Incident tracker

Recent cyber attacks and data breaches

DisclosedCompanyWhat happenedTypeRecordsSource
2026-04-27Pitney BowesPitney Bowes: a data breach

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.

Data breach
8,243,989Have I Been Pwned
2026-04-27ADTADT: a data breach

In April 2026, home security firm ADT confirmed a data breach by ShinyHunters , which listed the company on its website as part of a "pay or leak" extortion attempt. The breach impacted 5.5M unique email addresses along with names, phone numbers and physical addresses. ADT also advised that "in a small percentage of cases, dates of birth and the last four digits of Social Security numbers or Tax IDs were included" and that it had contacted all affected people.

Data breach
5,488,888Have I Been Pwned
2026-04-26UdemyUdemy: a data breach

In April 2026, online training company Udemy was the victim of a “pay or leak” extortion attempt perpetrated by the ShinyHunters group. The data was subsequently leaked publicly and contained 1.4M unique email addresses belonging to customers and instructors. The data also included names, physical addresses, phone numbers, employer information and instructor payout methods including PayPal, cheque and bank transfer.

Data breach
1,401,259Have I Been Pwned
2026-04-24CarnivalCarnival: a data breach

In April 2026, the notorious hacking collective ShinyHunters claimed they had obtained a substantial volume of data belonging to the Carnival cruise operator and attempted to extort the organisation to prevent the data from being leaked. The following week, the group published the data publicly, which contained 8.7M records with 7.5M unique email addresses. The data contained fields indicating it related to the Mariner Society loyalty program run by Holland America, a cruise line brand under Carnival, and included names, dates of birth, genders and data relating to status within the loyalty program. Carnival acknowledged a phishing incident involving a single user account and advised they were working to better understand the scope of the unauthorised activity.

Data breach
7,531,359Have I Been Pwned

+2 more

2026-04-17AmtrakAmtrak: a data breach

In April 2026, the hacking group ShinyHunters claimed they had breached Amtrak . The group typically compromises organisations' Salesforce instances before demanding a ransom and later, if not paid, dumping the data publicly. They subsequently published the alleged data which contained over 2M unique email addresses along with names, physical addresses and customer support records.

Data breach
2,147,679Have I Been Pwned
2026-04-16McGraw HillMcGraw Hill: a data breach

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.

Data breach
13,500,136Have I Been Pwned
2026-04-12HallmarkHallmark: a data breach

In March 2026, Hallmark suffered an alleged breach and subsequent extortion after attackers gained access to data stored within Salesforce. The data was later published after the extortion deadline passed, exposing 1.7M unique email addresses across both Hallmark and the Hallmark+ streaming service, along with names, phone numbers, physical addresses and support tickets.

Data breach
1,736,520Have I Been Pwned
2026-04-08My Lovely AIMy Lovely AI: a data breach

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.

Data breach
106,271Have I Been Pwned
2026-04-04CrunchyrollCrunchyroll: a data breach

In March 2026, the anime streaming service Crunchyroll suffered a data breach alleged to have impacted 6.8M users . The exposed data is reported to have originated from the company's Zendesk support system where "name, login name, email address, IP address, general geographic location and the contents of the support tickets" were exposed. A subset of 1.2M email addresses from an alleged 2M record dataset being sold was later provided to HIBP.

Data breach
1,195,684Have I Been Pwned
2026-04-04SongTrivia2SongTrivia2: a data breach

In April 2026, the music trivia platform SongTrivia2 suffered a data breach that was subsequently published to a public hacking forum . The data contained a total of 291k unique email addresses sourced from either Google OAuth logins or accounts created on the site, the latter also containing bcrypt password hashes. The data also included names, usernames and avatars.

Data breach
291,739Have I Been Pwned

About this tracker

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Ransomware gang claims
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Last 30 days
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