one click can ruin your life
Just like the viruses in medicine these viruses need contact this things to spread. A popular way for viruses to spread is by attachments. Viruses copy themselves making them very dangerous.
Just like the trojan horse these sneaky will sneak into your computer when you least expect it. They will usually attach to something legit, However they will usually give access to your computer or your information to someone else
How to Avoid Malware
Antivirus software- If you keep it updated this should help you be safe around the web
Firewalls- This is a great way to stay safe by not letting everything in or out.
Common sense- Don't open weird attachments, keep antivirus software updated
If you do all this you should be safe from malware on your computer