ShinyHunters Publish Data Impacting 2.6M People


DentaQuest Breach: ShinyHunters Publish Data Impacting 2.6M People

Pierluigi Paganini
June 07, 2026

ShinyHunters leaked 234 GB of data allegedly stolen from DentaQuest after failed negotiations, potentially impacting 2.6 million people.

The ShinyHunters extortion group has published a 234 GB archive of data allegedly stolen from dental benefits administrator DentaQuest.

The cybercrime gang added the company to its Tor data leak site in May, and the data was released after negotiations reportedly failed. The breach could affect approximately 2.6 million individuals whose information may have been exposed.

The company published a notice confirming it is responding to a cybersecurity incident involving unauthorized access to a limited part of its network. The company quickly moved to contain the attack and says its systems remain operational with minimal disruption.

DentaQuest is working with cybersecurity experts, forensic investigators, and law enforcement to determine the scope of the breach and any data exposure.

“DentaQuest is actively managing a cybersecurity incident involving unauthorized access to a limited portion of our network.  Upon discovery of the initial incident, we took immediate action to secure our environment, contain the attack and mitigate the threat.” reads the notice. “Our systems remain fully operational, and we continue to serve our clients with limited disruption.”

The benefits administrator has reported the incident to the authorities, but has not disclosed technical details about the security breach.

According to the data breach notification service HaveIBeenPwned, the leaked data includes 2.6 million email addresses, along with names, phone numbers, addresses, and healthcare-related records, some containing Medicaid IDs.

“In May 2026, the dental benefits administrator DentaQuest was the target of a ShinyHunters “pay or leak” extortion campaign that resulted in the group publicly publishing hundreds of gigabytes of data allegedly obtained from the company. The data included 2.6M unique email addresses along with names, addresses and phone numbers.” reports HaveIBeenPwned. “Much of the data appeared in healthcare enrollment files (ASC X12 transaction sets) with some containing Medicaid IDs, while additional data appeared in member records and related files.”

ShinyHunters is a well-known name in the cybercriminal ecosystem. The group is associated with a broader loosely connected network often referred to as “the Com,” made up largely of young, English-speaking individuals. Their operations typically focus on stealing data from large organizations and using leak sites to pressure victims into paying ransoms in cryptocurrency.

ShinyHunters has recently targeted major companies and organizations, leaking data when ransom demands fail. Victims include the European CommissionOdidoFigureCanada GooseRockstar, Canvas, Carnival, Charter Communications7-Eleven, and SoundCloud. The group primarily uses social engineering, especially voice phishing, to steal credentials and access SaaS platforms like SalesforceOkta, and Microsoft 365. 

DentaQuest is one of the largest dental benefits administrators in the United States and a subsidiary of Sun Life Financial. The company manages dental and vision benefits for roughly 32 million Americans, with a strong focus on Medicaid, CHIP, Medicare Advantage, and commercial plans. It operates nationwide and supports care through a network of more than 70 dental practices. Sun Life acquired DentaQuest for approximately $2.5 billion in 2022. The dental business was expected to generate around $100 million in annual earnings, although recent Medicaid-related challenges have weighed on performance.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, data breach)







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Recent Reviews


If you are a book purist, you might scoff when I recommend an e-reader instead of buying physical books, and I won’t blame you. The allure of the smell of pages, the weight of the book in my hands, the whole ritual, is hard to resist. 

However, if you allow me some leeway to convince you, there’s a strong argument to be made against physical books and in favor of using e-readers. So let me make the case for e-readers, because once you understand what you’ve been missing, it’s hard to go back.

Your entire library fits in your bag

This is the most obvious advantage, but it doesn’t get enough credit. I always read more than one book at a time, and carrying two or three physical books around is not realistic. Thick books alone are a chore to carry.

With an e-reader, you carry hundreds of books in a slim package. Switching between titles takes a second. If you travel frequently, this alone is reason enough to make the switch.

A thousand-page hardcover is great for your bookshelf but terrible for your commute.

Fat books are a workout, not a reading experience

If, like me, you are into fantasy books, you know they can be a behemoth to handle. You have to constantly shift how you’re holding it, find a way to keep it open, and somehow also stay comfortable. Thin books are fine, but the moment a book crosses a certain thickness, it starts working against you.

An e-reader weighs the same regardless of whether you’re reading a short novel or a massive fantasy series. That’s it. Whether I am reading The Count of Monte Cristo or the next book in Brandon Sanderson’s The Stormlight Archive series, my Supernote Nomad remains the same. 

Reading at night without waking anyone up

I do a lot of my reading at night, and this is where physical books completely fall apart for me. Lamps and book lights never feel comfortable. The light is never quite right, and if you share a room with someone, the whole setup becomes a problem.

Most e-readers, including Kindles, have a built-in backlight that you can dim to whatever level feels right. You can even switch to warm light mode, making it easier on your eyes. 

I’ve read at 3 AM with the brightness all the way down, and it felt completely natural. No lamp and no squinting required. 

Look up any word without losing your place

English is not my first language, and even for native speakers, encountering an unfamiliar word in the middle of a chapter is common. With a physical book, your options are to grab your phone and look it up, which almost always leads to distraction, or skip it and lose a bit of meaning.

On a Kindle or most other e-readers, you tap the word and the definition appears instantly. You can translate it, add it to a vocabulary list, and get back to reading in seconds. I look up far more words now than I ever did with physical books, and my reading comprehension is genuinely better for it.

Taking notes you’ll actually use later

I used to annotate physical books with a pen, and those notes would just sit there on the page, never to be seen again. Transferring them somewhere useful took more effort than I was ever willing to put in.

With my Supernote Nomad, I can use its Digest feature to clip what I am reading and quickly add any additional handwritten notes. I can then export those notes to Obsidian and process them. 

If you use any e-reader, highlighting a passage and adding a note will take a couple of seconds. Most e-readers also aggregate all your highlights and notes in one place, allowing you to quickly riffle through your notes without flipping pages. 

With physical books, my notes died on the page. With an e-reader, they became something I actually use.

Since these are digital notes, you can process them into your note-taking app to further digest the material.

Books are cheaper and easier to buy

Buying physical books is always more expensive than getting the digital version. Also, since most publishers are phasing out mass-market paperbacks, we are left with trade paperback and hardcover options, which may look better but also cost significantly more.

E-books don’t have that problem. I have purchased several books at less than half the price I would have paid for a physical version. Also, most of the time, e-books are on sale, making them even more affordable. 

And when you find a book you want to read at midnight, you don’t have to wait for a delivery or drive to a store. You buy it and start reading immediately. The convenience is hard to overstate once you get used to it.

Should you switch?

If you love the experience of physical books, the covers, the smell, the shelf aesthetic, that’s a completely valid reason to stick with them. There’s nothing wrong with it. I myself am curating my own bookshelf, and there will always be a place for those special books. 

But for convenience and ease of discovery and reading, I recommend you at least invest in one e-reader. It’s also one of the best times to buy them, as you can get good options around $100

Since these are e-readers, you don’t even need to upgrade them as often as your phone. If you don’t accidentally break them, they can easily last 5-6 years, making them worth the investment.



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