From the course: Ethical Hacking: System Hacking

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Cracking passwords

Cracking passwords

- [Instructor] There are several types of password cracking techniques. In this segment, we'll compare the steps in efficiency of brute-force, hybrid, and dictionary attacks. When we think of passwords, they can be in one of three forms. Clear text is readable text without any modification. Obfuscated passwords are converting text into an unreadable format. In this case, we simply shifted the characters by one. And hashed passwords use a non-reversible hash algorithm. In this case, we used SHA-256. So, let's talk about some methods we can use to obtain a password. Now, although there are various types of password cracking techniques, guessing a password is pretty much the most efficient, and can be done if someone uses a common password, such as a pet's name, or has even left the default value on a device or application. In fact, in a recent news article, it states that, "A significant percentage of confirmed data breaches involve using weak, default, or stolen passwords." It's easy…

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