Cybersecurity ensures the safety and integrity of data, networks, and systems. With the increasing reliance on technology, securing digital assets has become critical. **Core Areas**: 1. **Network Security**: Safeguarding data in transit using firewalls, VPNs, and intrusion detection systems. 2. **Application Security**: Preventing vulnerabilities in software. 3. **Endpoint Security**: Protecting devices like laptops and smartphones. **Common Threats**: - **Phishing**: Deceptive attempts to steal information. - **Malware**: Harmful software like viruses and ransomware. - **Zero-Day Exploits**: Attacks on undisclosed vulnerabilities. Best practices: - Implement strong passwords and multi-factor authentication. - Regularly update software to patch vulnerabilities. - Encrypt sensitive data. Cybersecurity tools like Wireshark and Metasploit allow professionals to analyze and secure networks. Consider obtaining certifications like CEH or CISSP to excel in this field.