FEDERALItem 1.05 · mandatoryHackingTechnologyInformationSoftwareCustomer Data InvolvedData ExfiltratedPIIIdentity (basic)CredentialsAuthenticationLowActive

DROPBOX, INC.

bd_26d346e70b299689 · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 24, 2024

Filed

May 1, 2024

To disclose

7 days

Affected

Not disclosed

Linked

2 filings

Confidence

84%

Full breach record for DROPBOX, INC. →

On April 24, 2024, Dropbox discovered unauthorized access to the Dropbox Sign (formerly HelloSign) production environment. The threat actor accessed data of all Dropbox Sign users, including emails, usernames, and account settings, and for subsets of users, phone numbers, hashed passwords, API keys, OAuth tokens, and MFA information. No evidence of access to account contents or payment information. Incident appears limited to Dropbox Sign infrastructure. Investigation, law enforcement, and regulator notifications ongoing.

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SEC clockMateriality determined Apr 29, 2024 → Filed May 1, 20242d ✓ SEC 4-day OK7 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 · 7 days

Apr 24, 2024

Discovered

Apr 29, 2024

Scope determined

May 1, 2024

Filed

vs. sector median

18 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

South Carolina State AGbd_7f7953060df2db902024-06-04 · +34dVerified

Name: DROPBOX, INC.
norm: dropbox
SEC CIK: 0001467623
Domain: dropbox.com

Name: DROPBOX, INC.
norm: dropbox
SEC CIK: 0001467623
Domain: dropbox.com
Industry: Technology - Software / Cloud Storage
Industry: Technologyllm
NAICS 513210 · Software Publishers

Discovered: Apr 24, 2024
Materiality determined: Apr 29, 2024
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)CredentialsAuthentication
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1530 Data from Cloud Storage Object
Threat actor: External
Regulator citations: Notifying regulatory authoritiesFiled 8-K Item 1.05 with the SEC

During the incident: Immediately activated cybersecurity incident response process to investigate, contain, and remediate the incident
Launched an investigation with industry-leading forensic investigators
Notified and are working with law enforcement
Notifying regulatory authorities and users with respect to unauthorized access to personal information
Changes made: Remediation efforts are ongoing
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 days(7 days from discovery to filing)
Compliance flags: SEC 4-day OK · 2d
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: Apr 29, 2024
→ Filed: May 1, 2024
2d cal. 4 business days SEC 4-day OK

Statute	Window	Elapsed	Threshold	Status
SEC	Materiality determined: Apr 29, 2024 → Filed: May 1, 2024	2d cal.	4 business days	SEC 4-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

SEC 8-KMay 1 · first · this page

South Carolina State AG+34d

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 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/1467623/000146762324000024/dbx-20240429.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: May 1, 2024
Raw hash: e7803a53c8dc123e1026dbaf0f121c659d6a656841ae9fb7dfcf314b879bfa18

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Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityDROPBOX, INC.

Victim entityDROPBOX, INC.

Incidentdiscovered Apr 24, 2024

Stated responseImmediately activated cybersecurity incident response process to investigate, contain, and remediate the incident

ComplianceSEC 4-day OK

Extraction provenanceno artifact recorded

Source provenancewww.sec.gov

Source filing