Reliance Heating Listed by blacklock Ransomware Group

On May 25, 2025, Reliance Heating and Air appeared on the leak site of the BlackLock ransomware group after the company’s internal files were exfiltrated during a ransomware attack. The Georgia-based HVAC contractor, which provides heating, cooling, air conditioning, heat pumps, ductless mini-splits, refrigeration, and furnace services to residential and commercial customers in the Metro Atlanta and Nashville areas, had revenue of $21.7 million last year. While the exact number of affected individuals remains unknown, any customer, employee, or vendor whose personal or financial records were stored in those systems may now have their information exposed.

What Public Reporting Shows

Public reporting indicates that BlackLock listed Reliance Heating and Air on its data-leak portal and provided a direct link to a downloadable archive hosted on the onion site. The exposed material consists of internal files exfiltrated during the ransomware incident. No precise count of records or list of specific data types has been published, but ransomware groups routinely extract customer invoices, service contracts, payment details, employee records, and contact information. The listing appeared on May 25, 2025, and the group typically sets a short deadline before releasing or selling the full archive.

Why This Matters for You and Your Family

If you or anyone in your household has done business with Reliance Heating and Air, your name, address, phone number, email, or payment information could be sitting in a zip file now circulating among criminals. That data can be used for identity theft, tax fraud, or targeted phishing emails that look legitimate because they reference your recent furnace repair or air-conditioner service. For families with children, the risk extends further: a single leaked parent email or phone number often links to family gaming accounts, school forms, or shared family calendars that give attackers a roadmap to additional personal details.

Credential leaks like this one cascade into account takeovers when the same password has been reused across multiple services. A criminal who obtains your information from an HVAC company can test those credentials on email, banking, and gaming platforms within hours.

The Doxxing and Identity-Chain Implications

Once basic contact details leave a company’s network, they rarely stay isolated. Attackers combine them with information from other breaches to build an identity chain that links your email address to usernames, phone numbers, children’s names, and even gaming handles. That chain turns a simple data leak into persistent harassment or extortion. Public reporting shows that ransomware victims’ customer lists frequently appear in subsequent doxxing packages sold on underground forums. Families are especially vulnerable because children’s gaming accounts are often tied to a parent’s email or phone number used at the breached business.

BlackLock’s Publicly Known Track Record

Public reporting attributes the BlackLock ransomware group with operations that emerged in late 2024. The group has claimed responsibility for attacks on dozens of organizations, focusing primarily on small and mid-sized businesses in the United States. Its typical playbook involves initial access through phishing or exploited remote desktop services, followed by exfiltration of sensitive files before encryption. BlackLock then demands payment and, if unpaid, publishes samples and eventually the full dataset on its leak site. The group’s extortion style combines public shaming with threats to sell the data to other criminals if the victim does not meet the deadline.

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 ever used at Reliance Heating and Air anywhere else it is 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 instead of 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 suspicious sites on your behalf while you focus on securing your own accounts.

The incident at Reliance Heating and Air illustrates how quickly a routine service-company breach can ripple into long-term privacy and security problems for ordinary families. Acting promptly on the exposed data and establishing ongoing visibility into new leaks gives you the best chance of limiting damage before criminals stitch your information into larger doxxing chains. DoxxScan by GalaxyWarden delivers that continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, including protection for your family’s gaming accounts that so often become the next link in the attack.