Fraud rings probe decision boundaries, poison feedback loops, and mimic good customers. How adversarial pressure degrades fraud models and the defenses.
Virtual cards generate limited-use numbers with set amounts, merchants, and expiry. How VCNs work, where they shine in B2B, and their limits.
Orchestration layers route payments across gateways for uptime and cost. The security model: token portability, added scope, and single points of failure.
Ransomware against retailers and processors halts payment acceptance. Containment choices, offline fallbacks, and recovery priorities for payment ops.
TLS protects every card number in transit. Minimum versions, certificate management, pinning, and the misconfigurations that quietly break protection.
Requirement 10 defines what payment environments must log, how logs are protected, and daily review duties. A practical implementation guide.
Adversary-in-the-middle kits proxy the real login and relay OTPs in real time, defeating SMS and app codes. How AiTM works and what…
Two ways to meet PCI DSS without the defined control: temporary compensating controls and 4.0's customized approach. How each works and when…
Criminals enroll stolen card numbers into mobile wallets by defeating issuer verification. How provisioning fraud works and how issuers stop it.
Balance draining, bot enumeration, card-testing cash-outs, and scam payments: how gift card fraud works and how issuers and merchants fight it.