Skip to content
Cyber Threat
CTI Academy Sponsor CTI Academy
Ransomware victim Financial Services

First Secure Bank Group

Listed by Storm on · organisation based in United States

Disclosed
Sep 27, 2026
Leak-site listing date
Threat group
Storm
113 victims listed
Country
United States
#1 most targeted
Sector
Financial Services

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Storm. Figures and technique mappings are quoted from the source data, not inferred.

First Secure Bank Group listed on Storm's dark web leak site on 27 September 2026 - a u.s. financial services provider offering banking, lending, mortgages and other products to communities across its network of banks.

About First Secure Bank Group

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

Source record: ransomware.live

About the Storm group

Storm has listed 84 victims since August 2026.

Incident analysis

First Secure Bank Group was listed by Storm ransomware, a group with 113 victims recorded in this database. The listing appeared on the group's leak site on September 27, 2026.

First Secure Bank Group is based in United States and operates in the Financial Services sector. United States ranks #1 worldwide for ransomware disclosures, with 10,019 victims in this database.

Sector context. Financial sector organisations are targeted for their access to funds, sensitive financial data, and the reputational damage a public breach can cause. Regulatory requirements also increase recovery costs.

Storm typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was First Secure Bank Group attacked by ransomware?

Yes. First Secure Bank Group was listed as a victim of the Storm ransomware group on September 27, 2026. The organisation is based in United States and operates in the Financial Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked First Secure Bank Group?

First Secure Bank Group was attacked by Storm ransomware. Storm is one of the most active ransomware groups, having claimed 113 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the First Secure Bank Group ransomware attack occur?

The ransomware attack on First Secure Bank Group was disclosed on September 27, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the First Secure Bank Group ransomware attack?

The specific data stolen from First Secure Bank Group has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Financial Services organisation, First Secure Bank Group likely held financial records, client data, and transaction histories.

How can organisations protect against Storm attacks?

To defend against Storm and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.