Hacking a website is a situation where an attacker gets access to data that is stored on your resource. For example, logins and passwords of registered users, payment data, etc.
Hacking a website should not be confused with a DDOS attack. The purpose of the latter is slightly different — to “put” the site, i.e. to make it temporarily unavailable. Not so long ago, we wrote that for this, unscrupulous competitors can specifically create an excessive load on the site using parsing. In the same article, we told you how to protect yourself from this.
Now let’s look at what allows you to hack the site.
Vulnerability of CMS, frameworks or plugins. There are even special programs that allow such vulnerabilities to be found. Or a hacker can find out what your site is designed on and manually search for “holes” in this engine.
An unclosed directory on the site — this allows you to see the listing of service files and view their contents. Catalogs of such sites can be easily viewed using special programs (source — revisium.com ): An unclosed directory on the site, the danger of hacking the site, how to secure your site, site protection
The administrator’s transition to malicious portals that are already infected with viruses, or by suspicious links. After that, a script is run that allows you to access the admin panel of the site. For example, a “friend” may ask the portal admin to vote for him by the link.
Using unreliable programs to work with the site. For example, a program that connects to FTP or SSH will transfer access to third parties.
Placing ads on the site from suspicious and unreliable sources. In this case, you think that you are installing code on your site that belongs, for example, to a banner. And the script actually gets access to the data of visitors to your resource.