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⚙️ Operational Risk and Resilience 18 min readWeight 20%

Operational Risk: Frameworks, Loss Data, and Model Risk

Basel definitions, loss event categories, the AMA approach, key risk indicators, and the growing importance of model risk as a subset of operational risk.

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Operational Loss Frequency Versus Severity

Low-frequency, high-severity events behave very differently from routine control breaks.

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Why it matters

Operational risk frameworks need both incident capture for common events and scenario analysis for tail events.

What Is Operational Risk?Basel Event TypesMeasurement ApproachesKey Risk IndicatorsModel Risk

Operational Risk: Frameworks, Loss Data, and Model Risk

What Is Operational Risk?

Basel defines operational risk as: "The risk of loss resulting from inadequate or failed internal processes, people, and systems, or from external events."

This definition includes legal risk but excludes strategic risk and reputational risk (though these often follow operational failures).

Examples

  • A rogue trader bypasses controls and accumulates unauthorized positions
  • A cyberattack compromises customer data and triggers regulatory fines
  • A software error causes incorrect trade execution for three hours
  • A natural disaster destroys a data center, halting operations

Basel Event Types

Basel categorizes operational losses into seven event types:

#Event TypeExamples
1Internal FraudUnauthorized trading, embezzlement, intentional mismarking
2External FraudRobbery, phishing, identity theft, hacking
3Employment PracticesDiscrimination lawsuits, workplace safety violations
4Clients, Products & Business PracticesMis-selling, fiduciary breaches, market manipulation
5Damage to Physical AssetsNatural disa

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