SUBJECT-0828.dossier · person · status: active
OI
subject of file

Oleksandr Ieremenko

Ukrainian hacker who breached SEC EDGAR system in 2016
Tracked because Ukrainian hacker who breached SEC EDGAR system in 2016 · 7 documented connections
Facts on record8
Connections mapped7
Sources cited9
Evidence: 3P 5I
Network web → Timeline → Compare with… → Position Drift → Coverage tone → View on Graph → View Card → Export CSV JSON Dossier ← Entity Directory
Stated vs Revealed
No documented contradictions on file.
PATTERN company → [regulatory filing] → government agency → [adve... 104× PATTERN person → [adversarial] → government agency → [regulatory ... 104× PATTERN person → [regulatory filing] → government agency → [adver... 81× PATTERN person → [adversarial] → government agency → [regulatory ... 81× PATTERN person → [adversarial] → government agency → [regulatory ... 30×
TIMELINE Role Overlap Visualizer →
Connection Map
Key Connections
→ Securities and Exchange Commission government agency
adversarial
Hacker who breached SEC EDGAR system
Facts (8)
Data Freshness
Ageing Last update: 160d ago · Avg age: 839d
Confidence Tiers: Primary Source — cross-referenced government/corporate filings Pending Review — sourced but not independently verified AI Inference — analytical hypothesis from cross-referencing
✓ Verified Findings (3)
Independently re-checked: a second model read the source artifact and confirmed it supports the extracted claim.
✓ verified Primary Source After October 2016 breach discovery, Ieremenko attempted to regain EDGAR access in 2017 through phishing campaigns against SEC users
Date: 2017-01-01 Added: 09 Apr 2026 ↗ RECORDS: SEC enforcement complaint
✓ verified Primary Source Traders made transactions before at least 157 earnings releases from May to October 2016, generating at least $4.1 million in illegal profits
Date: 2016-05-01 Added: 09 Apr 2026 ↗ SOURCE: SEC complaint and CyberScoop reporting
✓ verified Primary Source Ukrainian hacker Oleksandr Ieremenko extracted test filings containing nonpublic earnings information from EDGAR servers
Date: 2016-05-01 Added: 09 Apr 2026 ↗ SOURCE: SEC enforcement action and DOJ charges
All Connections (7)
→ Securities and Exchange Commission government agency
adversarial confirmed
Hacker who breached SEC EDGAR system
→ Division of Enforcement government agency
investigated_by secondary since 2016
The Division of Enforcement (part of the SEC) investigated Ieremenko's extraction of nonpublic earnings information from EDGAR servers and subsequent phishing campaigns.
→ Cyber Unit government agency
investigated_by secondary since 2016
The SEC's Cyber Unit was involved in the investigation of Ieremenko's hacking of the EDGAR system and his attempts to regain access via phishing.
→ Market Abuse Unit government agency
investigated_by secondary since 2016
The SEC's Market Abuse Unit investigated Ieremenko's activities given that traders used his extracted nonpublic earnings information to make transactions before at least 157 earnings releases, generating illegal profits.
→ EDGAR Business Office government agency
targeted_organization_unit secondary since 2016
Ieremenko extracted test filings containing nonpublic earnings information from EDGAR servers, which are managed by the SEC's EDGAR Business Office.
prosecuted_by secondary since 2016
The U.S. Attorney's Office for the District of New Jersey was involved in the legal case against Ieremenko for his role in the EDGAR hacking scheme.
→ FireEye company
investigated_by inferential since 2016
FireEye, a cybersecurity firm, was involved in investigating or responding to Ieremenko's hacking activities related to the EDGAR breach.
Sources (9)
2026-05-09 UNVERIFIED SEARCH_ERROR: Oleksandr Ieremenko not found in fec claim_flag Processed 📜 Receipt
2026 UNVERIFIED Research: Oleksandr Ieremenko — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt
2026 UNVERIFIED Research: Oleksandr Ieremenko — Court records (no results) court_document Processed 📜 Receipt
2026 UNVERIFIED Research: Oleksandr Ieremenko — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt
2026 UNVERIFIED Research: Oleksandr Ieremenko — FEC donations (no results) fec_record Processed 📜 Receipt
2026 UNVERIFIED Research: Oleksandr Ieremenko — SEC filings (no results) sec_filing Processed 📜 Receipt
2017-01-01 ↗ SEC enforcement complaint web_search Processed 📜 Receipt
2016-05-01 ↗ SEC complaint and CyberScoop reporting web_search Processed 📜 Receipt
2016-05-01 ↗ SEC enforcement action and DOJ charges web_search Processed 📜 Receipt