Final answer:
Web application authentication helps verify user identity through various methods like password-based, two-factor, and biometric authentication. Each method has its use-cases and vulnerabilities, such as brute force attacks for passwords, inconvenience and second-factor exploitation for 2FA, and privacy concerns for biometrics. Enhancing security involves better practices, updates, and education to reduce hacking.
Step-by-step explanation:
Forms of Web Application Authentication
Web application authentication is a security process that verifies the identity of users before granting them access to protected resources. Three common forms of authentication are:
Password-based Authentication: This is the most basic form which involves a username and password. It should be used when simplicity and ease of use are important but it has problems such as susceptibility to brute force attacks and reliance on users creating strong passwords.
Two-factor Authentication (2FA): This adds an extra layer by requiring a second factor, usually a code sent to the user's phone or email. It is useful for protecting sensitive data but can be inconvenient for users and can be bypassed if the second factor is compromised.
Biometric Authentication: It uses unique biological traits, like fingerprints or facial recognition. Ideal for high-security areas but it raises privacy concerns and issues with false positives or negatives.
Hackers use tactics like phishing, malware, and brute force attacks to steal data such as personal information, credit card numbers, and login credentials. They often sell this information on the dark web or use it for fraudulent activities. To mitigate hacking, it is critical to use complex passwords, keep software updated, and educate individuals on security best practices.