JavaScript is one of the most widely used programming languages, powering the majority of interactive websites and apps.
But it also has a bit of a reputation for being a security risk.
If you’re a non-tech executive, this doesn’t mean you need to steer clear of JavaScript entirely - but it’s worth understanding the risks and asking the right questions.
The goal is to ensure your team is on top of security measures, particularly if you’re using applications that handle sensitive data.
Here’s what you need to know and ask.
1. What Makes JavaScript a Bit Risky?
JavaScript runs directly in users’ browsers, meaning it operates on the user’s device.
This setup is fantastic for fast, interactive features but also means JavaScript code is more exposed to potential manipulation by hackers.
What to Ask Your Team:
“If our application is built in JavaScript, what safeguards do we have in place to prevent tampering or data leaks?”
2. Is Our Application at Risk for Cross-Site Scripting (XSS) Attacks?
JavaScript is known for being susceptible to Cross-Site Scripting (XSS), a type of attack where hackers inject malicious code into a website or app.
This code then runs on users’ devices, potentially capturing sensitive information.
What to Ask:
“Are we taking precautions against XSS attacks in our JavaScript applications?”
Alternative:
Some frameworks like TypeScript and Vue.js offer enhanced security features on top of JavaScript, which can help mitigate these risks.
3. Do We Use Any Third-Party JavaScript Libraries?
JavaScript’s popularity has led to thousands of third-party libraries (basically, pre-written code) that developers can plug into applications to speed up development.
While convenient, these libraries can introduce security risks if they aren’t kept updated or come from unverified sources.
What to Ask:
“If we’re using third-party JavaScript libraries, are they from trusted sources, and do we update them regularly?
Possible Alternative:
Consider platforms like WebAssembly for highly sensitive applications.
While it still supports JavaScript, it has extra layers of security.
4. Do We Have Protections Against Phishing?
JavaScript can be used by attackers to create convincing fake login screens or pop-ups, which can trick users into entering their credentials.
What to Ask:
“How are we protecting our applications from phishing schemes that might target our users?”
Possibly Alternative:
Some businesses opt for server-side languages like Python or Java for back-end applications, which don’t run directly in users’ browsers and can offer a more controlled environment for sensitive functions.
5. What About Data Privacy and Compliance?
When JavaScript is used to manage data on the front end (on the user’s device), it’s crucial to ensure it doesn’t unintentionally expose or leak information.
Additionally, data regulations require careful handling of personal information.
What to Ask:
“Are our JavaScript applications designed with data privacy in mind? And are we compliant with relevant regulations?”
Possible Alternative:
For applications handling sensitive data, languages like Ruby or Go can be excellent choices, especially if the application doesn’t need heavy user interaction in real-time.
They offer robust security features for handling data on the server side.
How You Can Support Secure Development
You don’t need to be a coder to encourage a security-focused approach.
By asking these questions, you’re showing your team that security is a priority, and empowering them to make thoughtful choices.
Sometimes, JavaScript is the right tool for the job, and there are ways to make it secure.
Other times, considering a different language or platform might be the best move.
Wrapping It Up
JavaScript is powerful, but it’s not the only option - and when security is at stake, it’s worth considering all possibilities.
Equip yourself with the right questions, and you’ll be able to work with your team to ensure your applications are built securely from the ground up.
At Toro Digital, we’re here to help you make tech-savvy decisions that protect your business.
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