Derp.org Listed by IMNCrew Ransomware Group

On May 5, 2025, the Denver Employees Retirement Plan appeared on the leak site of the ransomware group IMNCrew. The organization, which manages pension benefits for more than 10,800 retirees and beneficiaries and nearly 10,000 active members of the City and County of Denver, is claimed to have had internal files exfiltrated during a ransomware attack.

What's Publicly Reported from Reporting

Public reporting indicates that IMNCrew posted DERPs data on its dark-web leak site, accessible only via Tor. The exposed material consists of internal files; the precise volume and specific data types remain unclear from available reporting. No confirmed list of affected individuals has been published, leaving current and former Denver employees, retirees, and their families uncertain about their exposure. The incident follows the group’s typical pattern of exfiltrating data before encrypting systems and later threatening public release unless a ransom is paid.

Why This Matters for You and Your Family

If you or a family member has ever worked for the City of Denver, Denver Health, or the retirement plan itself, your personal information may now sit in a ransomware leak. Pension records frequently contain Social Security numbers, dates of birth, addresses, bank routing details, and beneficiary information. Once such data reaches criminal forums, it can be used for identity theft, tax fraud, or targeted phishing that feels personal because attackers already know your retirement account numbers or spouse’s name. For families relying on these monthly pension payments, any disruption or fraudulent claim against the account can create immediate financial stress.

The Doxxing and Identity-Chain Risks

Credential leaks like this one rarely stop at the initial breach. Public reporting describes how ransomware operators sell or publish data that links work emails, personal phone numbers, and sometimes family member details. These fragments allow criminals to map an entire household across social media, gaming platforms, and financial sites. A single exposed email from your Denver pension file can unlock password-reset paths on other accounts, turning one breach into a chain of takeovers. Children’s gaming accounts are especially vulnerable because kids often reuse simplified passwords or security questions that reference family information now circulating in the leak.

IMNCrew’s Publicly Known Track Record

Public reporting attributes IMNCrew with emerging in late 2024 as a ransomware-as-a-service operator. The group has claimed responsibility for attacks on municipal governments, healthcare providers, and pension-related organizations. Its typical playbook involves initial access through phishing or exploited remote desktop services, followed by exfiltration of sensitive files, deployment of encryption, and then dual extortion: demanding payment to decrypt systems while simultaneously threatening to publish stolen data on its leak site. Deadlines are usually short, often seven to fourteen days, after which samples or full datasets are posted to pressure victims and attract data buyers.

What to do

• Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, then use the cleanup to remove what you can.
• Rotate any password you used for Denver-related accounts or email addresses anywhere it has been reused, and switch on 2FA through an authenticator app rather than text messages.
• Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your information is caught in hours, not months.
• Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts that often chain back to the same address or parent email.
• Let remediation specialists handle takedown requests across data brokers and leak sites for you while you focus on securing your own accounts.

The incident shows how quickly pension data can move from a municipal server to criminal marketplaces. Taking concrete steps now limits how far that data can travel. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping that connects online handles to real identities, and hands-on remediation by specialists who manage takedowns for the entire household, including children’s gaming accounts that frequently become targets once credential leaks cascade into doxxing chains.