Final answer:
Computer viruses commonly infect vulnerable digital devices through methods like email attachments, infected websites, and external storage devices.
Step-by-step explanation:
Computer viruses commonly infect vulnerable digital devices through various methods:
- Email attachments: Viruses can be hidden in email attachments, and when a user downloads and opens the attachment, the virus infects their device.
- Infected websites: When a user visits a compromised website or clicks on malicious links, they can unknowingly download viruses onto their device.
- External storage devices: Viruses can spread when infected storage devices like USB drives are plugged into vulnerable devices, allowing the virus to transfer.