What are the common network security threats?

Common network security threats include:

1. Malware: Malicious software such as viruses, worms, trojans, ransomware, and spyware that can infect and damage computer systems or steal sensitive information.

2. Phishing: A form of social engineering where attackers impersonate legitimate entities to trick users into revealing sensitive information like passwords, credit card details, or login credentials.

3. Denial of Service (DoS) Attacks: These attacks overwhelm a network or system with excessive traffic or requests, causing it to become unavailable to legitimate users.

4. Man-in-the-Middle (MitM) Attacks: Attackers intercept and alter communication between two parties without their knowledge, allowing them to eavesdrop, modify, or steal sensitive information.

5. Password Attacks: Techniques like brute-force attacks, dictionary attacks, or password guessing are used to gain unauthorized access to systems or accounts by exploiting weak or easily guessable passwords.

6. SQL Injection: Attackers exploit vulnerabilities in web applications to inject malicious SQL code, allowing them to manipulate or extract data from databases.

7. Cross-Site Scripting (XSS): Attackers inject malicious scripts into trusted websites, which are then executed by unsuspecting users, potentially leading to the theft of sensitive information or unauthorized actions.

8. Insider Threats: Employees or individuals with authorized access to a network or system intentionally or unintentionally compromise security by stealing or leaking sensitive data, or by introducing malware.

9. Wireless Attacks: Attackers exploit vulnerabilities in wireless networks, such as Wi-Fi, to gain unauthorized access, intercept data, or launch other attacks.

10. Data Breaches: Unauthorized access or disclosure of sensitive information, often due to poor security practices, can lead to significant financial and reputational damage for individuals or organizations.

It is important for organizations to implement robust security measures, such as firewalls, antivirus software, encryption, strong authentication mechanisms, regular security updates, and employee training, to mitigate these threats and protect their networks.