Access Control: Implement strict user access controls, ensuring only authorized personnel can access the server resources.
Firewall Setup: Configure a robust firewall to filter incoming and outgoing network traffic, blocking potential threats.
Regular Updates: Keep the server's operating system and software up-to-date with security patches to address vulnerabilities.
Encryption: Employ data encryption methods to protect sensitive information from unauthorized access or interception.

A firewall is a security system that acts as a barrier between a trusted internal network and untrusted external networks, such as the internet. It monitors and controls incoming and outgoing network traffic based on predefined security rules. Firewalls are used to prevent unauthorized access, protect against cyber threats like malware and hackers, and ensure data privacy by filtering and managing network traffic.

Yes, mobile devices can pose security risks due to their portability and connectivity:
1. Data Exposure: Mobile devices often store sensitive data, making them susceptible to loss or theft.
2. Malware Threats: Mobile apps can contain malware that compromises device security and steals data.
3. Network Vulnerabilities: Connecting to unsecured networks increases the risk of data interception and unauthorized access.
4. Device Management: Lack of proper security measures can lead to unauthorized access and data breaches.
Implementing strong security practices and using reputable apps can mitigate these risks.

Cyber attacks incur significant costs:
1. Financial Loss: Direct financial impact includes recovery expenses, legal fees, and potential fines.
2. Reputation Damage: Brand reputation can suffer, leading to customer trust erosion.
3. Operational Disruption: Downtime and disrupted operations can result in revenue loss.
4. Data Breach Fallout: Stolen data can lead to legal consequences and compliance penalties.