Transcription
Welcome to Cyber Ar Hub. The simplest technique to hack any account is a brute force attack. In this video, we will learn about brute force attacks. A brute force attack is also called a dictionary attack. It involves finding out the password or PIN through this hacking technique. Any computer server, social profile, or bank account can be hacked using this method.
A brute force attack is a completely guess-based attack in which a user's username and password can be compromised. For this, different combinations of letters, numbers, and special characters are continuously tried by the software tool until the password is cracked. A word list file is added to the brute force software tool, which is like a dictionary containing millions of types of words. Sometimes, a custom word list is used based on information related to the target being hacked, which increases the possibility of cracking the password.
The time it takes to crack a password completely depends on its complexity; that is, the longer and more difficult the password is, the more time it will take for a hacker to crack it. For example, if there is a two-character password using only numbers, the password can range from 00 to 99, resulting in a total of 100 combinations. Now, consider the length; if you use alphabets and special characters along with numbers, the combinations will increase significantly, making it very difficult for hackers to guess or hack them.
Some software tools used for brute force attacks are Hydra, John the Ripper, Rebo Crack, Hash Cut, and Encrack. Now, we will discuss how to avoid brute force attacks.
First, the password should not be simple; it should be at least 8 to 16 characters long and must include letters, numbers, and symbols. There should be a limit on login attempts on the second login page; if more than three incorrect attempts are made, the account should be locked for some time. Captcha should be used on the third login page. Along with the username and password, a captcha—various words or shapes appearing in a box—should be included, which the person logging in must enter. This helps prevent the use of automated software tools or bots in brute force attacks.
Fourth, implement two-factor authentication. In this method, to open a user account, the account must first be authenticated. The user has to enter the correct login details, and then to proceed further, a second authentication step is required. For example, you can use an OTP for second authentication; if someone tries to log in to your account, a verification code will be sent to your mobile. Only after entering this code can the user proceed further.
These are some methods to prevent brute force attacks. That's all for this video. If you liked the video, please like and share it, and consider subscribing for more content on ethical hacking and cyber security. Thank you.