FEDERALItem 1.05 · mandatoryMalwareFinancial ServicesFinanceRansomwareSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedMulti-Stage ChainIdentity (basic)Government IDHighActive

Navient Corporation

bd_b5e45f0d9efde57c · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 8, 2026

Filed

Jul 2, 2026

To disclose

24 days

Affected

Not disclosed

Confidence

67%

Full breach record for Navient Corporation →

Navient Corporation (CIK 0001593538) filed an 8-K on July 2, 2026, disclosing a material cybersecurity incident under Item 1.05. On June 8, 2026, Navient became aware that a third-party law firm experienced a ransomware attack. The attacker accessed Navient-related borrower data (names, DOB, addresses, SSNs) maintained by the firm. Navient's own systems were not directly accessed. The incident was deemed material on June 29, 2026. Navient engaged external experts, notified law enforcement, and is notifying affected individuals and regulators.

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SEC clockMateriality determined Jun 29, 2026 → Filed Jul 2, 20263d ✓ SEC 4-day OK24 days discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 25 days

Jun 8, 2026

Discovered

Jun 29, 2026

Scope determined

Jul 2, 2026

Filed

vs. sector median

5 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Navient Corporation
norm: navient
SEC CIK: 0001593538

Name: Navient Corporation
norm: navient
SEC CIK: 0001593538
Industry: Financial Servicesnaics map

Discovered: Jun 8, 2026
Materiality determined: Jun 29, 2026
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: conducting notifications to affected individuals and regulators
Third party: via Third-party law firm
Initial access: supply_chain

During the incident: Initiated an investigation, with the assistance of external cybersecurity experts
Conducting notifications to affected individuals and regulators
Law enforcement has also been notified
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 days(24 days from discovery to filing)
Compliance flags: SEC 4-day OK · 3d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
SEC
Materiality determined: Jun 29, 2026
→ Filed: Jul 2, 2026
3d cal. 4 business days SEC 4-day OK

Statute	Window	Elapsed	Threshold	Status
SEC	Materiality determined: Jun 29, 2026 → Filed: Jul 2, 2026	3d cal.	4 business days	SEC 4-day OK

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statementThis record

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.sec.gov/Archives/edgar/data/1593538/000114036126027441/ef20077249_8k.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Jul 2, 2026
Raw hash: 2dcb8d1aa166e163e4b667487361512b6ba2160be661f10ad6be99aa1122419e

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Reporting entityNavient Corporation

Victim entityNavient Corporation

Incidentdiscovered Jun 8, 2026

Stated responseInitiated an investigation, with the assistance of external cybersecurity experts

ComplianceSEC 4-day OK

Extraction provenanceno artifact recorded

Source provenancewww.sec.gov

Source filing