Be careful about Virus and Worm in Email attachments

Most virus and worms spread as email attachments. Taking some precaution can keep you safe from getting virus by emails. Some of the common file types used to deliver viruses are:

.scr - Windows Screen Saver - Be careful if you receive a screen saver via email. These may contain viruses and worms.
.pif - DO NOT OPEN! This is most likely a virus. Clicking it will run a program or code that may install a virus in your computer.
.exe - executable file - a program that may contain a virus, trojan horse, or worm

.pps - MS PowerPoint (may contain macro virus)
.zip - Zip (compressed) file, may contain virus
.vbs - Visual Basic script
.bat - Executable MS-DOS batch file
.com - DOS executable command
.asp - active server page - internet script
.doc - Word document (may contain macro virus)
.xls - Excel file (may contain macro virus)

.pdf, .txt and .jpg (and other picture) files are usually considered as safe. However, please look out for any extra extension added to an attached file. For example, you may have something like "name.jpg.exe". If you don't have your computer set to view file extensions, it may just look like "name.jpg" and you wouldn't see "vbs" part. It's better to set your computer to view file extensions.