Answers
Altering data without permission
Making a rootkit to hide software
Disabling anti-virus alerts on someone's PC
Developing ransomware code to lock files
Posting worm-infected files on forums
Leaving infected USB sticks to be found
Coding a trojan disguised as a game
Deleting a colleague's files without consent
Running password cracking software
Defacing a company's website
Uploading a virus-infected game online
Emailing a virus attachment to staff
Entering a secure computer room unlawfully
Logging into a system without permission
Using another person's username and password
Changing exam grades in a database
Writing a virus to damage computers