How to get Visibility Into Your Client-side Code

How to get Visibility Into Your Client-side Code

The majority of the code on your website isn’t yours — but when it comes to how that code impacts your site and your users, it’s your reputation and revenue that are on the line.

70% of the code on a typical site isn’t developed in house, but is instead derived from open source libraries and third-party partners. This allows developers to quickly bring functionalities to market, improves site performance and enables marketing and e-commerce teams to track and analyze web traffic.

Third-party code is often added from trusted sources to enable specific and necessary functions, so it may not be analyzed as closely by your security team. It may be introduced or changed without formal security validation and, because of this, website owners lack complete control and visibility into what’s happening with this code when a user visits their site.

Also known as shadow code, this code loads content dynamically from third-party domains on users’ browsers. Frequently, a third-party script calls on another script which calls on another, creating a veritable supply chain where a vulnerability in an Nth-party script could put the whole chain at risk.

Cybercriminals take advantage of this client-side blind spot to launch Magecart, digital skimming and formjacking attacks. Website owners know that third-party code introduces risks, but the gains in time to market and capability are too critical in today’s fast-paced digital market. So assuming that third-party code isn’t going away, the question is: how can online businesses get these benefits while mitigating the risk?

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Static Code Analysis

Static code analysis — also known as Static Application Security Testing (SAST) — is a method of debugging in which an application’s source code is examined before a program is run. This process is usually done (Read more...)