They don't attach to sites, they attach to links or downloads. When you open up the software from a link or download, your computer is "infected."
Computer viruses can be attached to e-mail messages, address books, and attachments.
no but the site has holes,which means that if a hacker/virus is on the site,the site is not good enough to not let viruses through the site
yes but its not the site its the people who put viruses on the site
Viruses have to attach them selves by way of a protein called a recognition factor. They bind to receptors on the host cell and then lose their capsid (coat).
Attach a firewall or download a safe hard
In the nasopharynx
While worms do not need another program to attach themselves to, viruses do. Piggybacking refers to the way that viruses infect or attach themselves to legitimate programs or documents to sneak onto your computer and attempt to infect it.
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Depending on the images, a good site to attach images on might include Flickr or Picasa. An answer site that allows you to attach images might include WhatsThatBug. That site allows you to upload a picture of a bug and ask questions.
Viruses can infect animals, plants and bacteria, and the attachments vary. In animal viruses: Animal cells have a cell membrane. Viruses attach to certain proteins in that membrane. In plant viruses: Plants can also be infected with viruses. Since they have cell walls, viruses attach to those when infecting plants. In bacteriophages (viruses that infect bacteria): Special viruses called bacteriophages attach to the cell walls of bacteria by way of proteins.
No, Clubpenguin is a safe site run by Disney that does not cause viruses.