AI in credit decisions is genuinely controversial because it could either democratize lending and expand access to underserved populations or take historical discrimination and amplify it at scale. The reality is both are happening simultaneously in different institutions—it all depends on how intentionally the AI is designed and monitored for fairness.

Sam and Mac examine how AI is disrupting traditional credit scoring. FICO scores have dominated for decades using limited data: payment history, credit utilization, length of credit history, types of credit, and recent inquiries. This approach systematically excludes millions who don't have traditional credit histories, even if they're perfectly responsible with money and would be excellent borrowers.

The technical models include XGBoost as the industry standard and neural networks for processing more data with hidden layers. Traditional logistic regression is often a poor fit for real-world credit behavior. Banks need model governance with clear ownership, regular bias testing, robust explainability, and human oversight for complex cases. AI handles straightforward approvals and denials; humans handle the middle—complex situations requiring judgment and contextual understanding.

Compliance has traditionally been viewed as a pure cost center—regulatory overhead that doesn't generate revenue. But AI is fundamentally changing this equation by turning compliance from a defensive obligation into an actual strategic advantage. New LSTM networks are achieving 94.2% accuracy in compliance monitoring while simultaneously cutting false positives dramatically.

Sam and Mac explore why AI in compliance might be the biggest impact area that nobody is talking about. The false positive problem has always made compliance painful and expensive—traditional systems generated massive false positive rates, with analysts drowning in alerts where 95% turned out to be completely legitimate activity. This creates compliance fatigue where analysts become desensitized because so many alerts are false.

The episode covers AI's impact across major regulatory areas: AML (Anti-Money Laundering), KYC (Know Your Customer), Sanctions Screening, and Trade Surveillance. For AML, AI narrows down suspicious patterns while letting routine activity pass without alerts. For KYC, banks report 78% faster onboarding times and 85% reduction in manual review—customers approved in an hour instead of days.

AI must be transparent and auditable. The future is shifting from reacting to violations to preventing them entirely, flagging patterns on day three instead of catching problems on day 30, saving millions in potential federal lawsuits.

Over 50% of fraud now involves AI. FIDZY surveyed 562 fraud professionals globally and found AI-powered fraud has become the norm, not the exception. We're talking about deepfakes, synthetic identities, and AI-powered phishing so sophisticated it's basically indistinguishable from legitimate communications. The counter punch? 90% of banks are now using AI to fight back—fighting fire with fire.

Sam and Mac paint the threat landscape: deepfake calls that sound exactly like your bank's fraud department, using your bank's actual spoofed phone number, with perfect voice and professional script asking for your PIN. California bank customers received dozens of these calls and many fell for it because the technology is that convincing.

This is an arms race. Fraudsters use AI, banks use AI—there's no final victory. As bank AI gets smarter at detection, fraud AI evolves to evade those systems. It's like computer viruses and antivirus software—never-ending evolution and counter-evolution. The economic stakes are enormous: Deloitte estimates US banking losses from fraud could increase from $12.3 billion in 2023 to $40 billion by 2027, more than tripling in four years due to generative AI sophistication.

Human oversight remains essential. 88% of banking professionals say human oversight is non-negotiable. AI identifies potential issues and surfaces them to analysts, but humans make final calls on complex cases. The benefit: 43% of institutions report increased efficiency because AI handles high-volume straightforward cases, freeing human experts for complex nuanced cases requiring judgment.