To secure a server, key steps include: Implementing firewalls: Control traffic with rules. Regular updates: Patch software and OS vulnerabilities. Encryption: Protect data in transit and at rest. Access control: Limit user permissions and use strong authentication. Monitoring: Detect threats with logs and real-time alerts. Backups: Ensure regular, secure data backups.

A firewall is a security system that monitors and controls incoming and outgoing network traffic based on predefined rules. It acts as a barrier between a trusted internal network and external threats, blocking unauthorized access while allowing legitimate communication. Firewalls are essential for protecting systems from cyberattacks and ensuring network security.

Yes, mobile devices can pose significant security risks. They are vulnerable to malware, phishing attacks, and data breaches, especially when connecting to unsecured networks or downloading untrusted apps. Lost or stolen devices can also expose sensitive information. Implementing strong passwords, encryption, and regular updates helps reduce these risks.

Multi-Factor Authentication (MFA) is a security method that requires users to provide two or more forms of verification to access an account or system. Typically, this includes something you know (password), something you have (a code sent to your device), or something you are (fingerprint or face ID). MFA is important because it adds an extra layer of security, making it much harder for attackers to gain unauthorized access, even if they obtain a password.

Cyber attacks can lead to significant costs, including: Financial losses: Due to theft, ransom payments, or business downtime. Reputation damage: Loss of customer trust and brand value. Legal penalties: Fines for non-compliance with data protection regulations. Recovery expenses: Costs for system restoration and enhanced security measures.