### Comment:
What are common techniques used to deliver malware through email attachments?

### REPLY:
One common technique to deliver malware through email attachments is by disguising the attachment as a harmless document, such as a PDF or Word file. The attachment may contain a macro or script that, when executed, installs the malware on the victim's computer. Another method is to use file extensions that are commonly associated with harmless files, such as .jpg or .txt, but are actually executable files containing the malware. It is important to note that engaging in such activities is illegal and unethical.