Yes, and so keyboards should be cleaned often and only plugged in when we need them.
This is because various types of viruses can live both on hard drives and on keyboards so it’s best not to share computers. It is also a very clever virus that people may not detect for months or years before the damage becomes too severe to recover from. Therefore, if someone else uses your computer, you should politely ask them to at least unplug their keyboard unless they wipe their hands off after touching it. Or better yet, don’t let anyone use your computer at all! Despite the rumor about keyboards having bacteria and other germs (which they do), enterprising hackers can transfer tiny bits of hardware containing malware onto a person’s keyboard.