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DIVD-2024-00019 - Victim Notification Operation Endgame

Our reference DIVD-2024-00019
Case lead Frank Breedijk
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Recommendation If you received a notification from us, members of your organization or your customers had their password stolen or system infected by a botnet. Detailed recommendations are found below.
Status Open
Last modified 04 Jun 2024 18:04


As part of Operation Endgame, the biggest anti-botnet operation to date. The Dutch Police, in cooperation with policy units form Germany, France, Denmark, the United States and United Kingdom and suppor to Europol and Eurojust have infiltrated a number of botnets, including at least Smokeloader, IcedId, Pikabot, SystemBC and Bumblebee. During this infiltration they obtained data about the victims of these botnets.

This data has been shared with us and various other parties like Have I Been Pwned, Spamhaus, Project No More Leaks, Project Check je Hack, the (Dutch) NCSC, CSIRT-DSP, and Digital Trust Center.

The data we have received consists of the following data sets:

  1. Email credentials, either SMTP or IMAP credentials
  2. ADFS credentials consisting of AD-domain and login credentials
  3. Unlabelled individual (email) account credentials.

What you can do

What you can do depends on who you are and the type of data the police found.To keep this main case page brief, we have created separate pages with recommendations for your situation.

You have received a notification that is only about your personal accounts:

You have received a notification about a number of accounts that belong to your organization:

What we are doing

We have received the discovered data from the police, and are sending out notification to individuals and organizations that have fallen victim to compromise. To effectively do this, we are in close cooperation with the Dutch National Police as well as the NCSC, CSIRT-DSP and DTC.

Frequently asked questions


Q: Is this a scam?

A: It’s great that you’re skeptical. However, this is legit and definitely not a scam. This operation is a collaboration between the Dutch National Police, Europol, Digital Trust Center, NCSC and others. We, Dutch Institute of Vulnerability Disclosure (DIVD), are mentioned in the press releases from the Dutch Police and Europol. The ‘Check je Hack. (translation: Check your Hack) FAQ also mentiones DIVD and shares a link back to this casefile.

Q: Do you have my password?

A:No, we do not have your password. We may have sent you an email containing a partial password, with only the last four characters visible. This is the only part of your password we possess because the Dutch Police ensured that all passwords were hidden before sharing the data with us.

Q: Are you going to go after the criminals who stole my information?

A:No, we are not. That is a matter for law enforcement. As per article 9 of our code of conduct: We analyze online threats, not threat actors. We are researchers and don’t serve the needs of governments or law enforcement.

Q: if you “don’t serve the needs of governments or law enforcement”, why are you cooperating with the Dutch National Police on this case?

A: Acting on this data set is directly in line with article 3 of our code of conduct: Analyze databases with leaked credentials and report to the organizations or people who are compromised to take appropriate measures.

We analyze every database we receive, including those from law enforcement. However, we do this independently, without any obligation or intention to share any specific information in return.


Q: What is an ADFS account and what can criminals do with it?

A: An ADFS (Active Directory Federation Services) account enables single sign-on for multiple applications. If criminals access it, they can infiltrate corporate systems, cloud services, and email accounts, leading to the theft of sensitive data and potential further attacks within the organization.

Q: Do you know how the Dutch National Police obtained this information?

A: No we don’t know any details, but we know that Operation Endgame contains information from several botnets.

Q: Do you know from which botnet my data was obtained?

A: No, those details were not shared with us.

Q: You are processing my personal data without my consent, is that legal?

A: Yes it is.Under Dutch law and European privacy regulations, we can process this data based on a so-called “legitimate interest.”DIVD is a private foundation that operates under a strict code of conduct, with the aim to make the digital world safer.


Date Description
01 Dec 2023-
30 May 2024
Period in which credentials were likely actively abused by the threat actors
30 May 2024 Dutch National Police goes public with Operation Endgame
30 May 2024
DIVD sends out first notifications
gantt title DIVD-2024-00019 - Victim Notification Operation Endgame dateFormat YYYY-MM-DD axisFormat %e %b %Y section Case DIVD-2024-00019 - Victim Notification Operation Endgame (still open) :2024-05-30, 2024-07-20 section Events Period in which credentials were likely actively abused by the threat actors (181 days) : 2023-12-01, 2024-05-30 Dutch National Police goes public with Operation Endgame : milestone, 2024-05-30, 0d DIVD sends out first notifications (?d): 2024-05-30, 2024-07-20

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