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investigation open

Updated 3 days ago

Kiewit Data Breach

▼ Key takeaways

•Reports suggest a potential breach involving Kiewit.
•Discovered on August 25, 2026.
•Possible data exposed: Names, Addresses, Dates of Birth, Social Security Numbers, Driver's License Numbers, Government-Issued Identification Numbers, Employment-Related Health Information.
•Confirmation level: Confirmed by company.

Breach confirmed

The Kiewit breach is confirmed. If you may be affected, add your details below and we will take it from there.

Detailed summary

Kiewit Corporation, a construction and engineering firm, disclosed a data breach in August 2026. The company completed its review on July 24, 2026, and began issuing notices to affected individuals on August 21, 2026, after discovering unauthorized access to an employee email account.

The incident may have exposed names, addresses, dates of birth, Social Security numbers, driver's license numbers, other government-issued identification numbers, and employment-related health information of current and former employees and independent contractors. The number of affected individuals has not been publicly disclosed.

At least four federal lawsuits have been filed against Kiewit Corporation related to this data breach. Further details about the scope and impact of the breach may emerge as these legal proceedings continue.

Data possibly involved

Names
Addresses
Could be combined with other data for identity theft
Dates of Birth
Social Security Numbers
Can be used to open fraudulent accounts and file false tax returns
Driver's License Numbers
Can be used for identity fraud
Government-Issued Identification Numbers
Employment-Related Health Information

Company Response Timeline

Response Grade

Notified consumers within 30 days of discovery

Breach Occurred

Unknown

Company Discovered

Jul 24, 2026

Regulator Notified

Unknown

Consumers Notified

Aug 21, 2026

28 days to notify consumers

Breach Verification Status

Reports Only

Complete

Initial dark web reports of potential breach

Company Confirmed

Current

Company has acknowledged the breach

Regulator Confirmed

Confirmed by regulatory authorities

Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

Case Status:

Investigation Open

We're actively investigating this case and seeking affected individuals.

Were you affected? Submit your information below.

Were You Affected By This Breach?

If you are a customer or have received a data breach notification, you may submit your information as part of our ongoing investigation. Submitting your information is free and does not obligate you.

Were you in the Kiewit breach? Check your email

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Check Your Risk Level

Answer a few questions to understand how this breach might affect you

Do you use Kiewit?

Yes

What should I do?

Change your passwords

Update passwords for the affected service and any accounts using the same password

Enable two-factor authentication

Add an extra layer of security to your accounts

Monitor your accounts

Watch for suspicious activity on your financial and online accounts

Watch for phishing attempts

Be cautious of emails or messages claiming to be from the affected company

Consider a credit freeze

Prevent unauthorized access to your credit report

Scan your email for other exposures

Check whether this address shows up in other known breaches. Free, no account.

Get your info off data-broker sites

Data Shield files removal requests with every broker that accepts an authorized agent, and gives you the exact link or letter for the brokers that only accept requests from you.

See how Data Shield works