Natsume Tax Accountant Corporation
8baseThis record tracks a ransomware attack claimed by the 8base group against Natsume Tax Accountant Corporation. 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
We work diligently, reliably and sensitively as your trusted partner, paying special attention to tax returns and tax advice.Partnership with everyone is the basis of our daily workThis is a tax accounting department located in Shinagawa.https://www.natsumeoffice.or.jp/
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.