DisclosureLens
HackingEducationEducationData ExfiltratedCustomer Data InvolvedIdentity (basic)MediumContained

Charleston County School District

bd_495df9fa415666ff · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 23, 2025

Filed

Apr 29, 2025

To disclose

6 days

Affected · nationwide

20,6539 in this filing

Linked

10 filings

Confidence

66%
Full breach record for Charleston County School District

Charleston County School District reported an external system breach (hacking) occurring between July 16-19, 2024. The incident was discovered on April 23, 2025, affecting 20,653 individuals, including 9 Maine residents. Personal information, including names, was acquired. CCSD engaged external experts, notified the FBI and SC Law Enforcement, and offered 12 months of credit monitoring via IDX.

Leak gap clock Leak >180d6 days discovery → filing
AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 281 days
discovery → filing · 6 days

Jul 16, 2024

Begins

Apr 23, 2025

Discovered

Apr 29, 2025

Filed

vs. sector median

9 wks faster

This filing is one of 10 about the same incident.View merged incident
A leak claim by ransomhub about this victim predates this filing by 285 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Regulatory filings (7) · sorted by filing gap

Show 3 more filingsup to 277d gap

Filing propagation · 8 filings · 7 states

View merged incident ↗

Pattern: first filing Jul 26, last Apr 30 (SC) — a 278-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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 filingThis record

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

SEC 8-K / victim statement

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