A "compromised computer" refers to a computer that has been hacked or infected with malicious software, allowing unauthorized individuals to access or control it without the owner's knowledge or permission. Full definition
All the federal security agencies and many large companies have research arms devoted to developing cybersecurity technologies and finding more effective ways to educate users so that they don't compromise computer systems. (sciencemag.org)
In other words, these vulnerabilities allow an attacker who has already compromised your computer to do additional bad things they shouldn't be able to do. (howtogeek.com)
This is a relatively new attack: hackers compromise computers and force them to mine cryptocurrency for them. (hackbusters.com)