What Is the Difference Between Code Review and Penetration Testing?

Later, penetration testers can assess the live application and determine whether similar authorization issues remain exploitable in practice.

The two approaches therefore complement each other.

Code review provides deeper visibility into why a vulnerability exists, while penetration testing helps demonstrate whether the deployed system can actually be attacked.

Which One Should Small Businesses Choose?

Budget and resources often influence security decisions, particularly for smaller organizations.

A small business may not have the resources to conduct every possible type of security testing. In that situation, testing priorities should be based on the organization's technology, exposure, and risk.

Resources such as how much a small business should spend on cybersecurity can help businesses think about security spending more strategically.

For a company operating a public-facing web application, penetration testing may be an important priority. For a business actively developing proprietary software, security code review may provide significant value during development.

In some cases, combining both approaches is the better long-term strategy.

How Often Should Penetration Testing Be Performed?

Penetration testing is not necessarily a one-time activity.

Applications, infrastructure, dependencies, and business processes change over time. New features can introduce vulnerabilities, while infrastructure changes can create new attack paths.