Recent modification of files:
A hacker can modify files to run a malicious code or create codes to invade your website. Server-side scripts modifications are the most vulnerable entry points for the hacker.
Unwanted Ads and Pop-ups:
When you visit your website if you see some unwanted ads and pop-ups appearing it is a strong indication of your website being hacked.
Redirection of your website to other sites:
Cross-site scripting or server-side code manipulation works to direct your website URL to hacked sites such as phishing pages or compromised websites.
Sudden increase in traffic:
Hackers create new pages in your website and send spam mails from your server. This increases the traffic to your website all of a sudden.
Redirects in The htaccess File:
Hackers place a redirection code into your website code and can keep modifying your .htaccess file. Google cannot access such files and the page gets redirected to some unwanted or blank page.
Installing one of the security tools in the website is the best way to prevent these hackers attacking your website. In spite of the installation, it is advisable to check the website for any file changes, malware, spyware, SEO spam or a phishing attack.
Every website HTTPS is vulnerable to being hacked, regardless of the size of the team or business. Security has to be continuous and regular. When you learn to recognize some signs of security breach, you can take measures to rectify it at the beginning to prevent further and serious damage to your website.