Was First Secure Bank Group hit by ransomware?

First Secure Bank Group was listed by the Storm ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Storm ransomware group?

Storm is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the First Secure Bank Group breach?

Storm published data attributed to First Secure Bank Group. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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First Secure Bank Group

Claimed by Storm · listed 3 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedSep 27, 2026
Data leakeddate unknown

At a glance

Group: Storm
Status: Data leaked
Country: United States
Sector: Financial Services
Listed on leak site: Sep 27, 2026

About the victim

AI dossier — public-source company profile

First Secure Bank Group is a U.S.-based financial services organization operating through affiliated banking institutions, including First Secure Bank and The State Bank Group. The group provides personal and business checking/savings accounts, lending, mortgages, online banking, and treasury services to individuals, families, and businesses, with a focus on community development and local support.

Industry: Community Banking & Financial Services
Address: 2175 Oneida St, Joliet, IL 60435, USA
Employees: 51-200

Attack summary

Severity: medium — Financial services organization with regulated customer data (banking records, personally identifiable information) subject to disclosed attack by ransomware operator; however, the leak post contains no proof files, no confirmation of exfiltration, and no specific data inventory, limiting confidence in the scope of compromise.

The Storm group claims to have conducted an attack on First Secure Bank Group; the leak post provides no specific details on whether data was exfiltrated, encrypted, or both, nor does it describe what data categories are at stake.

medium

What the group claims

First Secure Bank Group is a U.S.-based financial services organization focused on providing community-oriented banking solutions to individuals, families, and businesses. The group operates through affiliated banking institutions, including First Secure Bank and The State Bank Group. Its services include personal and business checking and savings accounts, commercial and consumer lending, mortgages, online banking, treasury services, and other financial products. First Secure Bank Group emphasizes personalized customer service, long-term relationships, and supporting the financial growth of the communities it serves. Through its network of banking institutions, the group provides accessible financial solutions while maintaining a strong focus on local businesses, community development, and responsible banking practices. The company headquarters is located in 2175 Oneida St, Joliet, IL 60435, USA. 51-200 Employees

Sources

Leak posthttp://yqhecvqtdvq6p7duqcgw2qca77spbgakxcoibtx6zpvfshltsbbbhfqd.onion/company/6ab8a905528b12a7cec1aca5

Source

Indexed 3 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Storm

Storm is a ransomware group first observed in August 2026, operating with an apparent financial motivation based on its targeting profile, though limited public documentation exists given its recent emergence and relatively small victim footprint. The group has claimed or been attributed to attacks against at least six known victims, with the United States representing its primary target geography. Storm has demonstrated a preference for targeting the healthcare and manufacturing sectors, alongside a broader category of other industries, suggesting an opportunistic rather than highly specialized targeting philosophy. Due to the group's recent emergence and limited victim count, comprehensive technical details regarding its initial access vectors, encryption methodology, tooling, or affiliation with known threat actor ecosystems have not yet been formally documented by CISA, the FBI, Mandiant, or other major threat intelligence publishers as of the time of this writing. No confirmed RaaS infrastructure, dark web leak site activity, or law enforcement actions against the group have been publicly attributed or reported in open sources. Given its nascent operational timeline beginning in 2026, Storm should be monitored as an emerging threat, particularly within the healthcare sector where ransomware attacks carry significant operational and patient safety implications, but analysts should treat any further characterization beyond the known victim and targeting data with caution pending additional corroborating intelligence. The group has been linked to 67 public disclosures across our corpus. First observed on a leak site on August 7, 2026; most recent post September 27, 2026. The operation is currently active.

Timeline of this disclosure

September 27, 2026First Secure Bank Group listed by Storm on the group's public leak site

Other recent disclosures by Storm

Storm has been linked to 67 public victims on Darkfield. A sample of the most recent:

See the full Storm dossier →

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 1,195 disclosures indexed across all operators we track. Geographically, First Secure Bank Group is reported in United States, a country with 3,167 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Storm means First Secure Bank Group appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Storm's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.