J is an emerging ransomware group that launched its leak site in May 2025, claiming over 41 victims by late 2025 including FAI Aviation Group (Germany), operating primarily as a leak-site-centric extortion identity with limited public technical analysis. Known victims: 41
Objectives
No AI analysis yet.
No techniques linked yet.
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No campaigns linked yet.
No observed data linked yet.
No references recorded yet.
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Techniques
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Campaigns
6
IOCs
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Observed Data
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Tactics