ZeroBytes

☆ pin

Also known as ChatNoir

Reports

First seen

Aug 14, 2026

Last seen

Sep 8, 2026

Motivation

Financial, Notoriety

Targeting

Sectors

Government ×3

Victim regions

×3

France×3

Victim country, only when stated. Corpus is predominantly English-language reporting, so US/EU coverage is overweighted relative to true victim distribution.

Top ATT&CK techniques

T1078 Valid Accounts ×3T1005 Data from Local System ×3T1041 Exfiltration Over C2 Channel ×2T1020 Automated Exfiltration ×1T1021.003 Remote Services: SSH ×1

Recent reports

High

French prosecutors confirm arrest of suspected ZeroBytes hacker behind tax cyberattack

The Record (Recorded Future News)Sep 8, 2026 High

French tax authority data breach affects 678,000 individuals

Bleeping ComputerAug 17, 2026 High

France investigates tax authority breach after hacker claims 600,000 victims

The Record (Recorded Future News)Aug 14, 2026

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