Computer Security 1.5

Computer security refers to the protection of computer systems and the information they store or transmit from unauthorized access, use, disclosure, disruption, modification, or destruction.

Computer security is crucial to protect sensitive data, prevent unauthorized access, maintain privacy, ensure business continuity, and mitigate cybersecurity threats and risks.

Common types of cybersecurity threats include malware (viruses, worms, ransomware), phishing attacks, DDoS attacks, social engineering, password attacks, and insider threats.

Some ways to improve computer security include using strong passwords, keeping software up to date, using antivirus and firewall software, being cautious of suspicious emails/links, and regularly backing up data.

Encryption is the process of converting data into a coded form that can only be accessed with the proper decryption key. It is important for computer security as it helps protect sensitive information from unauthorized access during storage or transmission.

Multi-factor authentication (MFA) is a security measure that requires users to provide multiple forms of authentication (such as a password and a unique code sent to their phone) to verify their identity before accessing a system.

Public Wi-Fi networks can expose users to various risks such as eavesdropping, man-in-the-middle attacks, and malicious actors gaining unauthorized access to their devices or sensitive information.

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It enhances computer security by filtering out unauthorized access attempts and suspicious network traffic, thus helping to protect against potential threats.

Phishing is a type of cyber attack where attackers trick individuals into revealing sensitive information (such as passwords or credit card details) by pretending to be a trusted entity. To avoid falling for phishing scams, be cautious of suspicious emails, avoid clicking on unknown links, double-check URLs, and never provide personal information unless certain of authenticity.

If your computer gets infected with malware, you should disconnect it from the network, run a reputable antivirus scan to remove the malware, change passwords for any compromised accounts, and take steps to prevent future infections such as updating software and practicing safe browsing habits.