Early warning signs of software supply-chain attacks often appear in dark web forums and marketplaces through sales of access to developer accounts, private repositories, source code, API keys, and SaaS integrations, which attackers can exploit to compromise trusted software components and deployment processes. Flare researchers highlight that monitoring such underground activity—beyond traditional vulnerability alerts—can help detect potential supply-chain threats before they escalate into full incidents, as access to these resources can expose critical credentials and trusted relationships crucial to supply-chain security.
Early Warning Signs of Supply-Chain Attacks Live in the Dark Web

