J.B. Hunt Transport Services, Inc.

Company: 'Our systems remain operational, and there has been no disruption to our ability to serve customers.' No freight disruption observed or alleged. Data-exposure event, not an operational outage.

Event: unknown

First public: Oct 23

Third-party report: Oct 23

Acknowledged: Oct 29

Other explanations considered: Claimed volumes may be inflated; company confirms only unauthorized access to an isolated portion.; Lawsuits are reactive to the extortion claim, not independent evidence of data theft.

Corrected in independent review (retime): Company confirmed unauthorized access to 'an isolated portion' and no operational disruption, so A for a data incident is fine. Times wrong: event_time 2026-10-27 is the lawsuit filing date, not the event (intrusion date unknown); claim posted about 23 Oct,...

1. 2026-10-27/28 (filing dates) · DIS
   Four proposed class actions filed in W.D. Arkansas (Fayetteville) by current and former employees, incl. Parnell (5:26-cv-05297) and Lange (5:26-cv-05298). Lawsuits precede any breach notice letters.
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2. Oct 29 · OPS
   Company: 'Our systems remain operational, and there has been no disruption to our ability to serve customers.' No freight disruption observed or alleged. Data-exposure event, not an operational outage.
   Source
3. unknown (hack date not stated) · DIS
   Extortion group calling itself WhiteArmor publicly claimed J.B. Hunt data (claimed 140,838 employee records, 1.7m carrier contacts, 38.2m invoices, 973 Microsoft 365 mailboxes, $5m demand). Claim reported by trade press; DFX did not view any leak site....
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4. Oct 29 00:00 UTC · CON
   Company said it 'revoked the unauthorised access' to an isolated portion of its technology system. Containment stated, mechanism (credentials, sessions, tokens) not specified.
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5. Oct 29 00:00 UTC · REM
   Company said it engaged a cybersecurity firm and notified law enforcement.
   Source