Titan Rain is when hackers use computers to try and break into other computers or networks. It's like a game to the hackers, where they try to find weaknesses in the computer systems they are targeting, so they can gain control of them. This can give them access to sensitive information and can even allow them to take control of systems and do whatever they want with them. To protect yourself from Titan Rain, your best bet is to invest in quality cybersecurity software and practices that can help keep your computer networks safe from attack.