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Day & Zimmermann

Day & Zimmermann Vendor Cyber Rating & Cyber Score

dayzim.com

When you’ve been around for more than a century, you know a thing or two! At Day & Zimmermann®, we take our lifetime of experience and make things better! Our 37,000+ employees help bring big ideas to life every day. We’re pushing the boundaries of innovation in construction & engineering, operations & maintenance, staffing, and security & defense. And that’s not all. Did we mention that we have 900+ workplace locations with $3 billion USD in annual revenue? Come join our on purpose – We put people to work, we protect American freedoms, and we help our customers power and improve the world. We do what we say.® http://www.dayzim.com


DZ A.I CyberSecurity Scoring

DZ
Company Information
Website:http://www.dayzim.com
Employees number:4,155
Number of followers:58,879
NAICS:23
Industry Type:Construction
Homepage:dayzim.com
DZ Risk Score (AI oriented)
Between 700 and 749
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DZConstruction
Updated:
29/03/2026
728/1000
Moderate
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Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
DZ Global Score (TPRM)
xxxx
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DZConstruction
•••
Score locked
Instant access to detailed risk factors
Vulnerabilities
Benchmark vs. industry & size peers
Findings

DZ
DZModerate
Current Score
728Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
730Before Incident
JUNE 2026
730Before Incident
MAY 2026
729Before Incident
APRIL 2026
729Before Incident
MARCH 2026
728Before Incident
FEBRUARY 2026
727Before Incident
JANUARY 2026
727Before Incident
DECEMBER 2025
726Before Incident
NOVEMBER 2025
725Before Incident
OCTOBER 2025
724Before Incident
SEPTEMBER 2025
723Before Incident
AUGUST 2025
722Before Incident
SEPTEMBER 2023
764Before Incident
Breach
08 Sep 2023DZ
The Day & Zimmermann Group, Inc.

Inadvertent Disclosure of Information at The Day & Zimmermann Group, Inc.

697After Incident
HIGH-67
DAY1036072625
The Maine Office of the Attorney General reported on October 2, 2023, that The Day & Zimmermann Group, Inc. experienced an inadvertent disclosure of information due to an error made during a vendor update to its Human Resources system, SuccessFactors, which occurred from September 8 to September 10, 2023. A total of 3,222 individuals were affected, with 2 residents specifically reported, and identity theft protection services including credit monitoring were offered.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
Data Compromised: Personal InformationSystems Affected: Human Resources System (SuccessFactors)Identity Theft Risk: High
DATA BREACH
Type Of Data Compromised: Personal InformationSensitivity Of Data: HighPersonally Identifiable Information: Yes

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