To ensure a safe and secure cyber space engineers must create a more secure software and be able to detect a virus or hack and quickly take action to block it.
Cyber crime is becoming a bigger problem since everything is mostly digital and we're moving into a digital world. A cyber crime is crime that occurs on the Internet and involves a computer. Altering, destroying, suppressing, or stealing output, usually to conceal unauthorized transactions. All these things are hard to detect, that's what makes this a n engineering challenge. It's not a simple task.
Originally the way to protect private accounts and other online things there would be firewalls at the entry point of the network to prevent hacks or breaches. Engineers would need better hardware, software, and data in the computer to authenticate the user and location of where things are happening. Engineers are also going to need understand the psychology that leads to computer crimes.