Yes. You should never open these attachments without knowing from whom they came.
yes of course it can
Yes
By you opening it.
no, absolutely not. A computer only can be infected by receiving or downloading a file with a keylogger.
yes .why not it will infect the computers memory too.
Not normally through a simple text email. However, a virus can enter a pc through a link to an infected site or a malicious attachment. ... Yes an email can have a virus in it, but usually you have to click on a link. The basic rule is if you have been sent an email by someone you do not know, have not asked for that email then treat it with caution. Never respond to an email from someone you don't know and have a process whereby any attachment sent to you by people you know or have asked to send you something is scanned by an updated antivirus software before opening
Yes; this is why you should avoid opening emails from those that are not your contacts.
Usully it comes through an infected file that you receive as an email attachment, or something that you have downloaded. Another common way is by clicking on flash files on webpages such as banners or other advertisements on webpages.
No, but they can send one in the email
Usually when you open a file or email attachment. Never open a file or email attachment that is unfamiliar to you or if the sender is unknown to you. Also, be sure you have an updated and reliable anti-virus application running on your computer.
If you download an unknown email attachment and open it on your computer, it could install a virus on your system and you would have a problem.
Yes.
Most computer viruses enter a PC via a spam email or infected website. This will come the form of an email attachment or some a Java applet. This means that it can be fairly easy to avoid getting a virus. Most people will get viruses simply they were not paying attention. They will open a malicious attachment someone spends them (this likely looks like a friend) or by going to a seedy website.
An email attachment could possibly be infected with a virus, malware, trojan, etc. Don't open an attachment from an unknown source. If you must, scan with an anti-virus program before opening the attachment.