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MainStreet Bank

MainStreet Bank Vendor Cyber Rating & Cyber Score

mstreetbank.com

MainStreet Bank, Member FDIC, is a community bank headquartered in Fairfax, Virginia and serving the Washington, DC metropolitan area. MainStreet has 55,000 free ATMs across the United States and in Canada, Mexico and the UK. With a robust and easy-to-use online business banking technology, MainStreet has “put our bank” in well over 1,000 businesses in the Metropolitan area and across the United States. The bank is not restricted by a conventional branching system, as it can offer business customers the ability to Put Our Bank in Your Office®. MainStreet has added third party payments as a specialized service along with its robust suite of commercial and business services. MainStreet Bank was also the first bank headquartered in


MainStreet Bank A.I CyberSecurity Scoring

MainStreet Bank
Company Information
Website:https://mstreetbank.com/
Employees number:664
Number of followers:3,812
NAICS:52211
Industry Type:Banking
Homepage:mstreetbank.com
MainStreet Bank Risk Score (AI oriented)
Between 700 and 749
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MainStreet BankBanking
Updated:
01/04/2026
734/1000
Moderate
Ba
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Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
MainStreet Bank Global Score (TPRM)
xxxx
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MainStreet BankBanking
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MainStreet Bank
MainStreet BankModerate
Current Score
734Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
736Before Incident
JUNE 2026
736Before Incident
MAY 2026
735Before Incident
APRIL 2026
735Before Incident
MARCH 2026
734Before Incident
FEBRUARY 2026
734Before Incident
JANUARY 2026
733Before Incident
DECEMBER 2025
733Before Incident
NOVEMBER 2025
732Before Incident
OCTOBER 2025
732Before Incident
SEPTEMBER 2025
731Before Incident
AUGUST 2025
731Before Incident
MARCH 2025
750Before Incident
Cyber Attack
01 Mar 2025MainStreet Bank
MainStreet Bancshares

Data Breach at MainStreet Bancshares

727After Incident
CRITICAL-23
MAI741060225
MainStreet Bancshares reported a data breach where thieves stole data belonging to approximately 4.65 percent of its total customer base during an attack on a third-party provider. The attack was discovered in March, and by April 28, it was confirmed that customer data had been compromised. The bank has around 55,000 ATMs and six branches across Virginia and Washington DC, with over 1,000 businesses using its on-prem banking offering. The bank's technical infrastructure was not compromised, nor were any unauthorized transactions or monies transferred. The attack did not impact the bank's operations or finances. The bank activated its incident response process and ceased activity with the affected vendor.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
Data Compromised: Customer Data
DATA BREACH
Type Of Data Compromised: Customer DataNumber Of Records Exposed: 4.65% of total customer base

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