# Risk
Risk is the potential for an unwanted outcome resulting from an action or inaction. It is an uncertain event that, if it occurs, could have a positive or negative effect on objectives. It is typically measured by combining the probability of an event and the magnitude of its impact.
**Pronunciation:** /rɪsk/
**Difficulty:** Beginner
**Synonyms:** Hazard, Peril, Danger, Uncertainty, Exposure, Threat
**Categories:** Project Management, Finance, Security, Decision Making
**Tags:** Uncertainty, Threat, Opportunity, Probability, Impact, Risk Management, Finance, Security
Canonical: https://scaleengineer.com/glossaries/risk
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## Definitions

- **Project Management Context:** In the context of project management, a **risk** is defined as an uncertain event or condition that, if it occurs, has a positive or negative effect on one or more project objectives such as scope, schedule, cost, and quality. This modern definition is crucial because it encompasses both threats (negative risks) and opportunities (positive risks).

Key concepts include:
*   **Probability**: The likelihood that the risk event will occur.
*   **Impact**: The potential effect on the project objectives if the risk occurs. It can be positive or negative.
*   **Risk Exposure**: Often calculated as Probability × Impact, it quantifies the overall threat or opportunity level of a risk.

For example, a negative risk could be a key supplier going out of business, causing delays. A positive risk, or **opportunity**, could be a new technology becoming available earlier than expected, which could reduce project costs and duration.
- **Finance and Investment Context:** In finance and investment, **risk** refers to the degree of uncertainty and/or potential financial loss inherent in an investment decision. It is the chance that an investment's actual gains will differ from its expected returns, including the possibility of losing some or all of the original amount invested.

Types of financial risk include:
*   **Market Risk**: The risk of losses in positions arising from movements in market prices (e.g., stock prices, interest rates).
*   **Credit Risk**: The risk of loss arising from a borrower who fails to make payments as promised.
*   **Liquidity Risk**: The risk that an asset cannot be sold quickly enough in the market to prevent a loss.

For instance, investing in stocks is considered to have a higher **risk** and potential for higher returns compared to investing in government bonds, which are generally seen as a lower-risk investment.
- **Information Security Context:** In information security and cybersecurity, **risk** is the potential for loss or damage when a threat exploits a vulnerability. It is a function of the likelihood of a given threat-source's exercising a particular potential vulnerability, and the resulting impact of that adverse event on the organization.

The formula is often conceptualized as:
**Risk** = Threat × Vulnerability × Impact

*   **Threat**: A potential cause of an unwanted incident, which may result in harm to a system or organization.
*   **Vulnerability**: A weakness in an asset or control that can be exploited by one or more threats.
*   **Impact**: The magnitude of harm that can be expected to result from the consequence of a threat successfully exploiting a vulnerability.

An example is the **risk** of a data breach (impact) due to a hacker (threat) exploiting an unpatched software flaw (vulnerability).

## Etymology

The term 'risk' entered English in the mid-17th century from the French 'risque', which in turn came from the Italian 'risco' or 'rischio'. The Italian term is believed to have originated from the Greek 'rhiza', referring to the hazards of sailing around a cliff, metaphorically representing a danger to be avoided.

## First used

17th Century

## Historical context

The concept of risk is ancient, but its formal study is more recent. In ancient times, risk was often associated with fate, luck, or the will of deities, viewed as something beyond human control. It was a **hazard** faced in endeavors like sea voyages or warfare.

The turning point came in the 17th century with the development of probability theory by mathematicians like Blaise Pascal and Pierre de Fermat. Their work, initially focused on games of chance, provided the mathematical tools to quantify uncertainty, transforming the concept of risk from pure fate into something that could be measured, analyzed, and managed.

In the 20th century, risk became a central concept in various fields. Harry Markowitz's Modern Portfolio Theory (1950s) revolutionized finance by showing how to manage investment risk through diversification. In project management, methodologies like PERT (Program Evaluation and Review Technique) and later the PMBOK® Guide formalized risk management processes. The digital age introduced new dimensions, with cybersecurity **risk** becoming a paramount concern for organizations worldwide.

## Q&A

- **What are the two main components used to measure risk?:** The two primary components used to measure or quantify a risk are its **probability** (or likelihood) of occurring and its **impact** (or consequence) if it does occur. Risk is often expressed as a function of these two factors, such as Risk = Probability × Impact.
- **How does a 'risk' differ from an 'issue' in project management?:** A **risk** is a potential future event that *might* happen and would affect project objectives. It is an uncertainty. An **issue** is a problem, obstacle, or event that is *currently happening* or has already occurred. In essence, a risk that materializes becomes an issue.
- **Can a risk have a positive outcome?:** Yes. In modern management frameworks, a risk is simply an uncertain event. While negative risks are called 'threats', positive risks are called 'opportunities'. An example of an opportunity is the **risk** that a key resource might become available sooner than planned, allowing the project to finish ahead of schedule.

## Usage examples

- The project manager identified a major **risk**: a key supplier might go out of business, so they developed a mitigation plan to address the **threat**.
- High-yield bonds offer greater returns but come with a higher **risk** of default, representing a significant financial **peril** for incautious investors.
- Leaving the server unpatched increased the company's **exposure** to cybersecurity **risks** from known vulnerabilities.
- By entering a new, unproven market, the startup accepted the **risk** in hopes of capturing a massive opportunity.

## Related terms

- Risk Management
- Risk Assessment
- Mitigation
- Contingency Plan
- Opportunity
- Issue
- Uncertainty
- Threat
- Vulnerability

## Popular related terms

- Risk Management
- Risk Assessment
- Mitigation
