Defacements: The Digital Graffiti of the Internet


A defacement typically refers to a remote code execution attack or SQL injection that allows the hacker to manipulate the visual appearance of the website by breaking into a web server and replacing the current website content with the hacker’s own.

Defacements are considered digital graffiti and typically contain some type of political or rivalry statement from the hacker. Hacktivist groups often leverage defacements.

These groups are typically unskilled, using basic software to automate their attacks. When major websites are defaced, it is typically due to network operator negligence. Web application firewalls are the best way to prevent these attacks, but updating content management systems or web services is also effective.

If you think that you are the target of a defacement campaign, update and patch your system immediately and alert network administrators to look for malicious activity, as a hacker will typically add a page to your domain. You can also monitor for such attacks retroactively via social media.

Download Radware’s “Hackers Almanac” to learn more.

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