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99 Cents Only Stores

99 Cents Only Stores Vendor Cyber Rating & Cyber Score

99only.com

With more than 40 years of operating experience, 99 Cents Only Stores is the leading retailer of extreme value stores in the southwestern United States. Our stores are located in California, Nevada, Arizona and Texas and offer consumable products with an emphasis on name brands primarily priced at 99.99 cents or less. Our differentiated merchandise mix, combined with outstanding value, enable us to appeal to a broad consumer demographic, increase overall customer traffic and frequency of customer visits, as well as strengthen customer loyalty. Our stores are significantly larger than traditional dollar stores, enabling us to offer a wider assortment and provide our customers with a spacious, comfortable shopping experience.


CS A.I CyberSecurity Scoring

CS
Company Information
Website:http://www.99only.com
Employees number:4,657
Number of followers:28,046
NAICS:43
Industry Type:Retail
Homepage:99only.com
CS Risk Score (AI oriented)
Between 700 and 749
logo
CSRetail
Updated:
02/04/2026
706/1000
Moderate
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Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
CS Global Score (TPRM)
xxxx
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CSRetail
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Findings

CS
CSModerate
Current Score
706Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
710Before Incident
JUNE 2026
709Before Incident
MAY 2026
708Before Incident
APRIL 2026
707Before Incident
MARCH 2026
706Before Incident
FEBRUARY 2026
705Before Incident
JANUARY 2026
704Before Incident
DECEMBER 2025
702Before Incident
NOVEMBER 2025
701Before Incident
OCTOBER 2025
700Before Incident
SEPTEMBER 2025
699Before Incident
AUGUST 2025
697Before Incident
JUNE 2024
780Before Incident
Ransomware
01 Jun 2024CS
99 Cents Only Stores

Ransomware Attack Claims Against Dollar Tree

675After Incident
CRITICAL-105
99-252073125
On Wednesday, the INC ransomware gang claimed to have attacked 99 Cents Only Stores, exfiltrating 1.2 terabytes of sensitive and personal data, including scans of passports. The company filed for bankruptcy last April and closed all of its stores in June 2024 due to financial hardship. Dollar Tree, which acquired some lease rights and assets from 99 Cents Only Stores, denied any involvement in the attack, stating that the data breach involved former 99 Cents Only employees.
INCIDENT DETAILS -
TYPE
Ransomware Attack
MOTIVATION
Financial
IMPACT
Scans of passportsSensitive and personal data
DATA BREACH
Type Of Data Compromised: Scans of passports, Sensitive and personal dataSensitivity Of Data: HighData Exfiltration: 1.2 terabytesPersonally Identifiable Information: Scans of passports

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