Incident Overview

A threat actor going by nxe is selling 70GB of export-controlled technical data allegedly from SEKISUI Aerospace Corporation, the U.S. subsidiary of SEKISUI Chemical Japan. SEKISUI Aerospace is a Tier 1 direct supplier for Boeing 737 and 787 programs, Spirit AeroSystems, Triumph Group, and multiple U.S. military programs. The company specializes in advanced composite structures, precision assembly tooling, and thermoplastic components and welding used in fuselage, wing, keel beam, and interior structures. Named end customers include Boeing Commercial, Boeing Defense, NASA, Lockheed Martin, and Northrop Grumman.

All drawings and models in the package are marked "EXPORT CONTROLLED: EAR 9E991 / ITAR Technical Data," meaning none of the material can legally be exported from the United States without an approved BIS or DDTC license. The sale of this data on a public forum constitutes a potential violation of U.S. export control law regardless of who purchases it. The actor states the data was previously sold exclusively to them as a one-time sale, and they are now reselling it.

The 70GB technical data package contains:

• Engineering Drawings: Technical PDF files with full production engineering documentation.
• CAD Files: Complete STEP files in AP242 format, compatible with CATIA V5-6R2022 and SolidWorks 2018 through 2024.
• Bills of Materials: Full BOMs with authentic Boeing part numbers.
• Tooling and Fixture Data: Production tooling for Boeing 737 MAX Keel Skin Splice Strap, Boeing 787 Section 41 Nose, and interior panel assemblies.
• Material Specifications: Details for carbon fiber prepreg, thermoplastic PEI and PPS, aluminum 6061-T6, and titanium inserts.
• Precision Tolerances: Tolerances down to plus/minus 0.0005 inch with GD&T in accordance with ASME Y14.5.
• 3D Assembly Models: Three-dimensional models of assembly tools including drill jigs, trim fixtures, bonding fixtures, and all related bushings and locator hardware with real Carr Lane and McMaster-Carr part numbers.
• Process Specifications: Boeing BAC-compliant process specification documents.

The actor describes this as production-level technical data from an active Boeing supply chain partner. The price is $200,000 USD and negotiable, with escrow required, samples available upon proof of funds, and contact via Telegram. The specificity of the listing is notable: naming exact aircraft assemblies (737 MAX Keel Skin Splice Strap, 787 Section 41 Nose), exact CAD compatibility versions, exact material grades, exact tolerance standards, and exact hardware supplier part numbers (Carr Lane, McMaster-Carr) suggests genuine familiarity with aerospace manufacturing data rather than fabricated claims.