MalwareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedIDENTITY_BASICLowContained
US TIGER SECURITIES INC.
bd_74b756aa1437bfe2 · schema v1 · pii pii-v1
Full breach record for US TIGER SECURITIES INC. →US Tiger Securities Inc. reported a cybersecurity incident on July 10, 2025, involving the encryption of files in a virtual back-office environment supporting US Tiger and TradeUP Securities. An unauthorized third party copied files between July 8-9, 2025. The incident did not impact TradeUP's production trading environment. Personal information, including names, was involved. US Tiger engaged legal and forensic counsel, conducted a data review, and is offering 24 months of Experian IdentityWorks to affected individuals. Notification was sent on May 15, 2026.
Massachusetts clock✗ MA AG >90d42 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.
This filing is one of 8 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (7) · sorted by filing gap
- bd_08d3e651a1fbee44Vermont State AGfiled 2026-05-15(14d gap)Verified
- bd_11827b814e70462fTexas State AGfiled 2026-05-15(14d gap)Verified
- bd_678b9bdd9ac8e7f0Washington State AGfiled 2026-05-15(14d gap)Verified
- bd_7fa2aa1eedf7d7e4New Hampshire State AGfiled 2026-05-15(14d gap)Verified
Show 3 more filings ↓Show fewer ↑up to 14d gap
- bd_9083d9bde07929f2Indiana State AGfiled 2026-05-15(14d gap)Verified
- bd_a75c3a2bd552ad81Maine State AGfiled 2026-05-15(14d gap)Verified
- bd_f29aee610e2ff2c9California State AGfiled 2026-05-15(14d gap)Verified
Source provenance
- Source URL
- https://www.mass.gov/doc/2026-786-us-tiger-securities-inc-tiger/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- May 1, 2026
- Raw hash
- cee60c9cda499f2eda78b578626ad1c27f9772d551e45934192821afcfa0e4e2
Reporting entity
- Name
- US TIGER SECURITIES INC.norm: us tiger securities
Victim entity
- Name
- US TIGER SECURITIES INC.norm: us tiger securities
Incident
- Discovered
- Jul 10, 2025
- Materiality determined
- —
- Notification sent
- May 15, 2026
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASIC
- Attack vector
- Ransomware
- MITRE ATT&CK
- T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
- Threat actor
- ExternalFinancial
Compliance
- Time to disclose
- 42 weeks(295 days from discovery to filing)
- Compliance flags
- MA AG >90d
- 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.
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.