Different types of hacking attack ?

What is Dictionary attack?

A dictionary attack is a technique or method used to breach the computer security of a password-protected machine or server. A dictionary attack attempts to defeat an authentication mechanism by systematically entering each word in a dictionary as a password or trying to determine the decryption key of an encrypted message or document. Dictionary attacks are often successful because many users and businesses use ordinary words as passwords. These ordinary words are easily found in a dictionary, such as an English dictionary.

What is Back door?

A backdoor is a technique in which a system security mechanism is bypassed undetectably to access a computer or its data. The backdoor access method is sometimes written by the programmer who develops a program. A backdoor is also known as a trapdoor.

What is Man in the middle attack?

A man-in-the-middle attack is a type of cyberattack where a malicious actor inserts him/herself into a conversation between two parties, impersonates both parties and gains access to information that the two parties were trying to send to each other. A man-in-the-middle attack allows a malicious actor to intercept, send and receive data meant for someone else, or not meant to be sent at all, without either outside party knowing until it is too late. Man-in-the-middle attacks can be abbreviated in many ways, including MITM, MitM, MiM or MIM.

What is Spear phishing?

Spear phishing is a variation on phishing in which hackers send emails to groups of people with specific common characteristics or other identifiers. Spear phishing emails appear to come from a trusted source but are designed to help hackers obtain trade secrets or other classified information.

What is Social engineering attacks?

Social engineering is an attack vector that relies heavily on human interaction and often involves tricking people into breaking normal security procedures. A social engineer runs what used to be called a "con game." Techniques such as appeal to vanity, appeal to authority and appeal to greed are often used in social engineering attacks. Many social engineering exploits simply rely on people's willingness to be helpful. For example, the attacker might pretend to be a co-worker who has some kind of urgent problem that requires access to additional network resources.

What is Visual hacking?

It can be described as an act of gathering someone's information or credentials by visual means like, by looking over someone's shoulder (i.e. Shoulder Surfing). When an attacker looks into the screen of nearby laptops or desktops or tablets/smartphones to gather information about that particular person who is using that gadget then it is included in visual hacking. Attacker might look into keyboard of victim to have an idea that what characters does his password consist of. If the attacker has recognized that what keys were pressed on keyboard, then he would use brute-force attack to hack or crack victim's password. The attacker might make a video or take photos of his screen and/or keyboard using smartphone camera.

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