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Zions Bancorporation

Zions Bancorporation Vendor Cyber Rating & Cyber Score

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Zions Bancorporation, N.A. is one of the nation's premier financial services companies with approximately $89 billion of total assets at December 31, 2024, and annual net revenue of $3.1 billion in 2024. Zions operates under local management teams and distinct brands in 11 western states: Arizona, California, Colorado, Idaho, Nevada, New Mexico, Oregon, Texas, Utah, Washington and Wyoming. The bank is a national leader in Small Business Administration lending and public finance advisory services, and has been recognized by Coalition Greenwich with 233 Excellence awards for small business and middle market banking over the past 15 years. Zions Bancorporation’s common stock is traded on NASDAQ under the symbol ZION. The company is a member


Zions Bancorporation A.I CyberSecurity Scoring

Incident Details
Zions Bancorporation
Company Information
Website:http://www.zionsbancorporation.com/
Employees number:4,053
Number of followers:29,541
NAICS:52211
Industry Type:Banking
Homepage:zionsbancorporation.com
Cyber Premium EstimationGet Supply Chain
Zions Bancorporation Risk Score (AI oriented)
Between 750 and 799
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Zions BancorporationBanking
Updated:
29/03/2026
752/1000
Fair
Baa
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
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Zions Bancorporation Global Score (TPRM)
xxxx
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Zions BancorporationBanking
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Findings

Zions Bancorporation
Zions BancorporationFair
Current Score
752Baa (FAIR)
01000
2 incidents
-17 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
759Before Incident
JUNE 2026
759Before Incident
MAY 2026
755Before Incident
APRIL 2026
755Before Incident
MARCH 2026
755Before Incident
FEBRUARY 2026
754Before Incident
JANUARY 2026
753Before Incident
DECEMBER 2025
752Before Incident
NOVEMBER 2025
752Before Incident
OCTOBER 2025
751Before Incident
SEPTEMBER 2025
750Before Incident
AUGUST 2025
766Before Incident
Cyber Attack
25 Aug 2025 • Zions Bancorporation
Zions Bancorporation

Major Cyberattack on Zions Bancorporation Involving DDoS and Data Breach

749After Incident
CRITICAL-17
ZIO4202542091025
Zions Bancorporation, a multi-bank operator, suffered a cyberattack on August 25, 2025, executed by the group Hider_Nex via a DDoS attack on its website. While DDoS attacks typically disrupt services without data theft, this incident escalated into a data breach, exposing sensitive customer information—including names, addresses, credit/debit card numbers, CVV codes, and expiration dates. The breach affected thousands of bank customers, with the attack potentially used as a diversion to exploit system vulnerabilities.The breach was formally disclosed to the Texas Attorney General’s office on September 9, 2025, and affected customers were notified via mail. The compromised financial data poses significant risks of identity theft, fraudulent transactions, and reputational damage to Zions Bancorporation. Customers were advised to monitor accounts, place fraud alerts, and exercise caution against phishing attempts. The incident underscores the dual threat of service disruption and data exfiltration, amplifying the attack’s severity.
INCIDENT DETAILS -
TYPE
Distributed Denial-of-Service (DDoS)Data Breach
IMPACT
NamesAddressesFinancial information (credit/debit card numbers, CCV codes, expiration dates)Website (downtime due to DDoS)Downtime: Yes (proof provided via external uptime monitoring service)Operational Impact: Disruption of online services; potential cover for unauthorized accessBrand Reputation Impact: Likely negative (public disclosure of breach and DDoS)Legal Liabilities: Potential (exposure of sensitive financial data)Identity Theft Risk: High (financial and PII exposed)Payment Information Risk: High (credit/debit card details, CCV codes, expiration dates compromised)
DATA BREACH
Personally Identifiable Information (PII)Financial DataNumber Of Records Exposed: Several thousand (exact number undisclosed)Sensitivity Of Data: High (includes payment card details and PII)Data Exfiltration: Likely (data exposed in breach)NamesAddressesCredit/Debit Card NumbersCCV CodesExpiration Dates
REFERENCES
Blog URLSource URL
JUNE 2019
780Before Incident
Breach
01 Jun 2019 • Zions Bancorporation
Zions Bancorporation, N.A.

Data Breach at Zions Bancorporation, N.A.

723After Incident
CRITICAL-57
ZIO326072725
The California Office of the Attorney General reported a data breach involving Zions Bancorporation, N.A. on July 23, 2019. The breach occurred on June 1, 2019, and involved unauthorized access to the company’s computer network, potentially exposing customer names, user IDs, email addresses, account numbers, and Social Security or tax ID numbers. The total number of affected individuals is unknown.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
customer namesuser IDsemail addressesaccount numbersSocial Security or tax ID numbers
DATA BREACH
customer namesuser IDsemail addressesaccount numbersSocial Security or tax ID numbers
REFERENCES
Blog URLSource URL

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Zions Bancorporation Cyber Scoring History | Rankiteo