Negative-quantity carts
A refactor lets a checkout total go below zero. Cybe pins the invariant and rewrites the validator.
Caught before checkoutNegative-quantity carts, coupon stacking, race conditions on stock. Five-figure leaks scanners never see. Cybe rewrites your e-commerce paths the moment the agent breaks them.


BLSA is built in collaboration with the CNRS and the CRIStAL laboratory (Université de Lille). Together we're prototyping a brand-new class of scanner that reasons about your codebase's business logic, the kind of risk no syntactic SAST has ever caught.
Cart logic is its own attack surface. Cybe walks it before your agent breaks it.
A refactor lets a checkout total go below zero. Cybe pins the invariant and rewrites the validator.
Caught before checkoutTwo BFCM codes apply when the rule says one. Cybe traces the stack state across the cart lifecycle.
Caught before checkoutReservation reads beat the lock under load. Cybe restores the order of operations across services.
Caught before checkoutNo credit card. No setup call. Pick your agent, paste the command, and Cybe enforces your rules from the very next prompt.
claude mcp add cybedefend --transport http https://mcp-eu.cybedefend.com/mcpHosted MCP, no install. Just register the URL with your agent.