SQL injection attacks: These attacks involve injecting malicious code into a website's database through input fields, allowing hackers to access sensitive information or manipulate data.

Cross-site scripting (XSS) attacks: These attacks involve injecting malicious code into a website through input fields, allowing hackers to steal sensitive information or redirect users to malicious websites.

Man-in-the-middle attacks: These attacks involve hackers intercepting communication between a website and its users, allowing them to steal sensitive information or alter data.

Denial of service (DoS) attacks: These attacks involve overwhelming a website with traffic, making it unavailable to users.

Phishing attacks: These attacks involve hackers sending fake emails or creating fake websites to trick users into entering their login credentials or other sensitive information.

Malware infections: These attacks involve hackers installing malicious software on a website, allowing them to access sensitive information or take control of the website.

Unsecured connections: Websites that do not use secure protocols (such as HTTPS) are vulnerable to attacks, as sensitive information can be intercepted by hackers.