Greenfield Savings Bank Data Breach Lawsuit Investigation
Greenfield Savings Bank (GSB) has disclosed that 518 Massachusetts customers were impacted after a marketing services vendor experienced a cybersecurity incident on August 14, 2025. If you received a notice, you may be entitled to compensation and complimentary identity-protection services. Contact our team today to discuss your rights and potential legal claims.
Download Official Breach Notice (PDF)Overview of the Greenfield Savings Bank Data Breach
On October 30, 2025, Greenfield Savings Bank filed a notice with the Massachusetts Attorney General revealing that personal information maintained by an external marketing vendor had been accessed without authorization. The bank’s internal systems were not breached; the compromise was confined to the vendor’s environment. Law enforcement was notified, and independent cybersecurity experts were engaged to assist with the investigation.
Timeline of Events
- August 14, 2025: GSB is alerted to the vendor’s cybersecurity incident.
- August–October 2025: Vendor investigates with cybersecurity specialists and coordinates with GSB.
- October 30, 2025: Breach reported to Massachusetts regulators; customer notification letters sent.
- October 31, 2025: Last update provided on investigation status.
Information Exposed
According to the notification, the following data was accessed:
- Date of Birth
- Social Security Number
- Financial account information
No evidence of misuse or attempted misuse has been identified to date.
Greenfield Savings Bank’s Response
The bank indicates it is taking several measures to reduce future risk, including:
- Ensuring the vendor has secured its systems and implemented additional safeguards.
- Conducting an internal review of all systems connected to the vendor.
- Enhancing oversight protocols for third-party security management.
Complimentary Identity Protection Through Experian
GSB is offering eligible customers 24 months of Experian IdentityWorksSM at no cost. The service includes credit monitoring, identity restoration assistance, and fraud resolution support. Instructions for activation are included in the mailed breach notice.
Your Legal Options
Under U.S. consumer-protection and data-privacy laws, financial institutions and their vendors must safeguard sensitive information. Individuals impacted by the Greenfield Savings Bank data breach may:
- Seek monetary damages for out-of-pocket losses, time spent, and emotional distress.
- Request injunctive relief to improve the bank’s and vendor’s security controls.
- Recover statutory damages where permitted under state law.
Our investigation is gathering evidence to pursue these claims on behalf of affected customers.
Recommended Next Steps for Affected Customers
- Enroll in the complimentary Experian IdentityWorks program.
- Review bank and credit-card statements for unfamiliar transactions.
- Obtain free credit reports from the three major bureaus and monitor for new accounts.
- Consider placing a fraud alert or security freeze on your credit file.
- Document any unauthorized activity and keep copies of correspondence.
Company Overview
- Website: greenfieldsavings.com
- Headquarters: 400 Main Street, Greenfield, MA, United States
- Industry: Banking
- Year Founded: 1869
- Official Social Media: Facebook | Instagram | LinkedIn
Frequently Asked Questions
What happened at Greenfield Savings Bank?
A third-party marketing vendor used by Greenfield Savings Bank experienced a cybersecurity incident on August 14, 2025, leading to unauthorized access to customer information. GSB’s internal systems were not compromised.
How many people were affected by the Greenfield Savings Bank data breach?
The bank reported that 518 Massachusetts residents had personal information exposed.
What information was exposed in the Greenfield Savings Bank breach?
Exposed data includes customers’ dates of birth, Social Security numbers, and financial account information.
Is Greenfield Savings Bank offering credit monitoring?
Yes. Affected individuals are eligible for 24 months of complimentary Experian IdentityWorks services.
Has my Greenfield Savings Bank account been hacked?
The bank states there is no evidence of unauthorized activity in its own systems. The breach was limited to the vendor’s environment. Still, monitor your accounts and credit reports closely.
Can I join a lawsuit against Greenfield Savings Bank?
If you received a breach notice, you may qualify to join our ongoing investigation and potential class action. Contact us for a free case review.
What should I do if I detect fraud related to the Greenfield Savings Bank breach?
Immediately report unauthorized activity to Greenfield Savings Bank and the appropriate financial institutions, and leverage the identity restoration services available through Experian.