Client-Side Cybersecurity for Cryptocurrency Exchanges and Blockchain

Stop cyberattacks on your cryptocurrency exchange by safeguarding your client-side attack surface.

Protecting your servers isn’t enough to ensure great crypto exchange security. You need to ensure that the client-side of any website or web application is also sealed against would-be attackers.

Learn how to engage better protection for your cryptocurrency exchange or blockchain with help from Feroot.

Cybersecurity for cryptocurrency
exchanges and blockchain

Offering a safe online space for traders and cryptocurrency investors is a key element of any good cryptocurrency exchange or blockchain. Without it, you leave your exchange vulnerable to attacks that seek to gain access to the millions or even billions of valuable currency trading across your platform.

From the 2011 Mt. Gox hack that led to the loss of hundreds of thousands of Bitcoin to the August 2021 hack of Liquid that compromised digital wallets and led to the loss of more than $97 million in crypto assets, these hacks keep happening because the potential payoff is extremely lucrative.

exchange issues

The only way to stop these cryptocurrency security issues is to protect both the server and the client-side of the attack surface.

On the client-side, there are many threats and vulnerabilities that can be used against the websites and web applications of crypto exchanges. Here are some of the most common.

XSS Attack

A cross-site scripting (XSS) attack occurs when a bad actor injects a malicious script into an undefended section of your website’s code. Then, the website or web application itself can be leveraged to send this code to unsuspecting users.

JavaScript Injection Attack

This threat is a common occurrence where the hacker changes part of the JavaScript on your website or application, allowing them to alter and collect any sensitive data on that page.

Cross-Site Request Forgery

Cross-site request forgery (CSRF) forces a user to unintentionally execute unwanted applications on a website or application where they are already authenticated. This can lead to them revealing their password or username, but it can also be used to take actions as severe as initiating a funds transfer.

Security solutions
for blockchain and
crypto exchanges

In the past, we’ve seen that even cold wallets can be vulnerable to these types of client-side security threats.

Addressing and combating these security threats is an absolute necessity for cryptocurrency exchanges and blockchains. If exchanges and organizations cannot offer their users a secure experience, it reduces public trust in their establishment and will eventually force users elsewhere.

Fortunately, help is available, and there are a variety of security solutions and practices that can address crypto exchange security in new and thoughtful ways. Here are a few ways that these exchanges and blockchains can take action to safeguard their users and the funds that they manage.

Engage two-factor

This is an obvious one, but it can help mitigate threats by providing a secondary safety measure to keep out bad actors, even if they’ve already accessed usernames and passwords.

Go through
penetration testing

Penetration testing—also called black-box testing—is a great way to get a realistic look at how a hacker could penetrate your system.

This testing should always be done by a reputable expert, who would then provide your organization with a report on existing vulnerabilities, as well as recommendations on what can be done to address them quickly and responsibly.

Determine your incident response
plan – before an incident occurs

One of the realities of operating a cryptocurrency exchange is that they continue to be a lucrative target for hackers. Instead of operating reactively, establish a proactive plan for what your team will do if a crypto exchange security issue arises. This way, you can speed up your reaction time and take steps to limit the damage if a security issue occurs.

Invest in client-side
security applications

Instead of asking your team to continually monitor your client-side attack surface manually, invest in applications that can do that work for you. Feroot offers two products that can monitor your website or web application and provide ongoing protection from client-side threats.


Inspector is an application that continually reports on JavaScript vulnerabilities, then provides recommendations to your team on how they can quickly and easily close those gaps.


PageGuard runs in the background of your web applications and automatically detects any code anomalies or unauthorized scripts that could pose a danger to your users.

Learn more about the client-side
protections offered by Feroot