Hackers divide their attacks into different types. These types are:

1️⃣ Nontechnical

These techniques focus on the end-users (i.e. the people who use the target devices).Because humans have a natural tendency to trust others, hackers can break through a system’s defenses without using any electronic tool. These hackers may use “social engineering” tactics to obtain a user’s trust and gain access to a network or file. You’ll learn more about social engineering later on.

A hacker may also implement a physical attack against his target. For instance, he may break into a computer room and access one or more devices that are present. As an alternative, he may check the dumpsters in the building and try to look for useful information (e.g. passwords). Hackers refer to this approach as “dumpster diving”.

2️⃣ Network

Hackers can implement this kind of attack easily, since most networks are accessible through the internet. The most common forms of network attacks are:

🔥 Accessing a network using a rigged modem.

🔥 Taking advantage of vulnerabilities in digital transport mechanisms (e.g. NetBIOS).

🔥 Sending a continuous stream of requests to a network.

🔥 Rigging the system and collecting data packets to access confidential information.

3️⃣ Operating System

These attacks play an important role in any hacker’s toolkit. That’s because each computer has an operating system. And there are a lot of tools that you can use to crack the OS (i.e.operating system) of a computer.

There are a lot of operating systems out there. However, hackers usually focus on the most popular ones (e.g. Windows systems). Here are some of the OS attacks that you can use:

🔥 Destroying the security of a file system.

🔥Deciphering passwords.

🔥 Attacking pre-installed authentication mechanisms.

🔥 Taking advantage of vulnerabilities in certain protocols.

4️⃣ Application

Some hackers utilize computer programs to attack networks. Often, a hacker gains access to a machine through a web-based application or an email-related program. The most popular members of this type are:

🔥 Sending “spam” (i.e. junk mail) to people.

🔥 Installing malware (i.e. malicious software) in target systems.

🔥 Bypassing security mechanisms (e.g. firewall) through “online” protocols (e.g. SMTP, HTTP, IMAP, etc.)

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