Online threats can be reduced by using antivirus, firewall, and strong passwords. These security measures work together to provide comprehensive protection against various types of online threats such as viruses, malware, hacking attempts, and unauthorized access.

Antivirus:
- An antivirus software is designed to detect, prevent, and remove malicious software, including viruses, spyware, and ransomware, from a computer or device.
- It scans files, programs, and websites for any potential threats and alerts the user if any suspicious activity is detected.
- The antivirus software regularly updates its virus definition database to ensure it can identify and eliminate new and emerging threats.
- By using an antivirus program, users can protect their devices from being infected and prevent the spread of malware to other devices.

Firewall:
- A firewall acts as a barrier between a computer or network and the internet, monitoring and controlling incoming and outgoing network traffic.
- It filters the data packets based on predefined security rules and policies, allowing only authorized and safe traffic to pass through.
- A firewall can prevent unauthorized access to a network, block malicious traffic, and protect against network-based attacks such as hacking and distributed denial-of-service (DDoS) attacks.
- It is essential to have a firewall installed and properly configured on all devices connected to the internet to minimize the risk of unauthorized access and data breaches.

Strong Passwords:
- A strong password is a combination of uppercase and lowercase letters, numbers, and special characters, making it difficult for others to guess or crack.
- It is recommended to use unique passwords for different online accounts and change them regularly.
- Strong passwords provide an additional layer of security and help prevent unauthorized access to personal information, online accounts, and sensitive data.
- Using weak or easily guessable passwords increases the risk of being hacked or having personal information compromised.

By combining antivirus software, firewall protection, and strong passwords, users can significantly reduce the risk of online threats and protect their devices, personal information, and online accounts from various malicious activities. It is important to regularly update and maintain these security measures to stay protected against evolving online threats.