Ransomware Group
Fulcrumsec
FulcrumSec is a data extortion group active since approximately September 2025, specializing in high-speed exfiltration of cloud-hosted databases by exploiting unrotated API keys and misconfigured cloud permissions rather than deploying encryption, with known victims including Australian fintech youX and LexisNexis.
Known victims28
Threat level
MEDIUM
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Known infrastructure
The following Tor hidden services have been associated with this group:
Index of /ShameFulcrumSecIndex of /ShameFulcrumSec
These sites are malicious. Open them only from an isolated environment.
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