High Grade Materials
akiraThis record tracks a ransomware attack claimed by the akira group against High Grade Materials. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
High Grade Materials is a Michigan-based company specializing in concrete and concrete-related products. We are going to upload about 20 GB of corporate data. A lot of em ployee information (DOB, passport number, address, phone and so o n), detailed financial data (audits, payment details, reports, in voices), contracts and agreements, death/birth certificates, NDAs , etc.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.