Cryptojacking

Cryptojacking is defined as the unauthorized use of an individual’s computer to mine cryptocurrency. Hackers accomplish this feat through several means.

This includes obtaining access via malicious links in an email that loads crypto mining code on the computer, or by infecting a website or online ad with JavaScript code that auto-executes once loaded in the victim’s browser.

Consequently, this crypto-mining code is able to work out of sight of unsuspecting victims, often without notice.

The only visible signs are often associated with slower performance or lags in execution.

Cryptojacking is extremely popular and growing as a cyberthreat.

This is due to the overall uncertainty associated with infected computers as well as a demand for offsetting large computing restraints presented by traditional crypto mining.

The cryptocurrency that is mined is sent into a hacker’s wallet. Cryptojacking malware is most commonly found in web browsers, but it can be downloaded onto computers, smartphones, and entire network servers.

How to Prevent Cryptojacking

As cryptojacking attacks utilize very similar techniques used in more traditional types of cyberattacks, the methods to protect against them are similar.

First, it is important to be aware of the dangers of phishing-type attacks.

Even basic security training should include building awareness of what attacks look like, as well as signs that an attacker might be trying to load malicious code.

Because many cryptojacking attacks are implemented through users’ web browsers, it is advised to improve security on them as well.

There are a wide range of easy ways to improve web browser security.

This includes a web browser that’s build with security in mind, in tandem with a good ad blocker to disable potentially malicious scripts.

Web browser security can also be improved by using a quality VPN, and there are several widely available add-ons specifically designed to detect and block crypto mining scripts.