HackingTechnologyInformationStolen CredentialsTargetedIdentity (basic)CredentialsAuthenticationMediumActive

DROPBOX, INC.

bd_7f7953060df2db90 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 24, 2024

Filed

Jun 4, 2024

To disclose

6 weeks

Affected

6,724state residents only

Linked

2 filings

Confidence

66%

Full breach record for DROPBOX, INC. →

Dropbox, Inc. reported unauthorized access to its Dropbox Sign (formerly HelloSign) production environment on April 24, 2024. A threat actor compromised a service account to access customer data including email addresses, usernames, phone numbers, hashed passwords, and authentication tokens. The incident was isolated to Dropbox Sign. Dropbox engaged forensic investigators, reset passwords, and notified regulators.

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South Carolina clock✓ SC CRA notice due6 weeks 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 · 6 weeks / 41 days

Apr 24, 2024

Discovered

Jun 4, 2024

Filed

vs. sector median

13 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

SEC 8-Kbd_26d346e70b2996892024-05-01 · +34dCandidate

Name: DROPBOX, INC.
norm: dropbox
Domain: dropbox.com

Name: DROPBOX, INC.
norm: dropbox
Domain: dropbox.com
Industry: Technologyllm

Discovered: Apr 24, 2024
Materiality determined: —
Notification sent: —
Affected individuals: 6,724state-resident count only
Data types: Identity (basic)CredentialsAuthentication
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: reported this event to data protection regulators and law enforcement
Initial access: valid_credentials

During the incident: Launched an investigation with industry-leading forensic investigators
Reset users’ passwords
Logged users out of any devices they had connected to Dropbox Sign
Coordinating the rotation of all API keys and OAuth tokens
Reported this event to data protection regulators and law enforcement
Changes made: Conducting an extensive review of this incident to better understand how this happened, and to protect against this kind of threat in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(41 days from discovery to filing)
Compliance flags: SC CRA notice due
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

SEC 8-KMay 1 · first

South Carolina State AG+34d · this page

Pattern: first filing May 1, last Jun 4 (SC) — a 34-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.

Source URL: https://consumer.sc.gov/sites/consumer/files/Documents/Security%20Breach%20Notices/2024/Dropbox%2C%20Inc.-%20Consumer%20Notice.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 4, 2024
Raw hash: 458be2e071cbd84a58eacc08e217b566d46e19aa4d8d5944a5eac8ca4d515665

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityDROPBOX, INC.

Victim entityDROPBOX, INC.

Incidentdiscovered Apr 24, 2024

Stated responseLaunched an investigation with industry-leading forensic investigators

ComplianceSC CRA notice due

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov