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Questions tagged [email-attachments]

The tag has no usage guidance.

3
votes
2answers
149 views

I received an encrypted email attachment as a reply to a previous conversation, months later

As in the title - I received an email reply to a months old thread containing a password protected zip file. I had previously asked them for a particular CAD file, but this was months ago and we had ...
53
votes
2answers
10k views

How do US government agencies open their email attachments?

I suppose the FBI receives email with attachments, like any other government agency: documents, resumes/CVs, etc. I also suppose they are very careful not to get infected, more than the average user, ...
2
votes
0answers
58 views

Search function in Outlook and attachements

I am wondering how the search function of Outlook is working, especially in regards to researching key words that are presents in emails attachements. Does the Outlook search function opens the files ...
2
votes
3answers
695 views

How to inspect an email attachment without downloading it?

I accidentally opened a PDF email attachment on an Android phone as I was trying to figure out if the email was fraud or a scam. It was an email claiming I booked a flight and the pdf had my e-tickets....
0
votes
3answers
43 views

Sending email from my provider back to my provider with data from user input secure?

My boss wants me to create the following functionality: A user fills out a form on our website with some data. He can also upload some files, which have personal information. After the form is ...
0
votes
4answers
118 views

Proving a forwarded email attachment was not modified

There was an issue and my employer asked me to forward the email that I sent out to a client a few days prior. The email contained 3 PDF attachments and I immediately sent this to my manager. I am ...
2
votes
2answers
155 views

Downloaded “DHL” fraud email to Linux, action needed?

Yesterday I ordered a package and today received an email from "DHL". I downloaded an attachment from the email and clicked it. It opened a htm page. (I did not fill out any information.) I now ...
0
votes
3answers
112 views

Executable files in email attachments on UNIX

.EXE files are a danger in email attachments, and are usually blocked by Windows email clients. How is this on UNIX/macOS, where executables don't have an extension? Based on the file data, how do ...
2
votes
2answers
90 views

Can email be secured by the receiver only, without action by the sender?

An established financial institution just directed me to email them a document with sensitive information. When I questioned the security, the CS rep and manager both tried to assure me that, "...
4
votes
1answer
235 views

E-Mail attachments can be opened using their URL in webmail even after logging off

My E-Mail is on Bell Net. I noticed today what I thought was a major security hole. Then I wasn't sure so I wanted to post this. I discovered that even though I have logged off my E-Mail, I can still ...
0
votes
1answer
2k views

What's the risk in downloading a .pdf from a phishing email?

I've received an email which is an obvious phishing attempt. However, a .pdf has been attached which I want to open, just out of curiosity! What are the risks in downloading .pdf files from unknown ...
0
votes
1answer
99 views

I need to download and open an email attachment but how to check if it's safe before?

Someone sent a 39 kb file email attachment. A strange picture appears over the attachment. I didn't open it. I would need to check the file but I'm afraid it's a scam. I was planning to log into my ...
-1
votes
1answer
82 views

Transferring potentially malicious e-mail attachments to air-gapped machine

Overview: I am interested in having an e-mail account designated for receiving anonymous tips as part of a larger anonymous tip infrastructure at my business. My professional domain's e-mail is ...
0
votes
2answers
129 views

How can I select a compression utility that is popular and secure enough

In a previous posting on Which is a safe way to transfer a copy of a sensitive document?, I have received suggestions to compress and encrypt an attachment file using the options of utilities such as ...
6
votes
3answers
782 views

Which is a safe way to transfer a copy of a sensitive document?

A reputable and clearly identified institution asked me, for legitimate reasons, to e-mail a scan of the passport. However, I regard the passport as a sensitive document and am pretty reluctant to use ...
0
votes
1answer
87 views

How does Thunderbird quarantine downloaded emails? Is it dangerous to download emails and store them offline?

There shouldn't be a high security risk as long as the email attachments aren't opened / executed by the user but it could still be a risk and maybe I'm wrong. So how does Thunderbird quarantine ...
19
votes
4answers
3k views

What lessons can be learned from the latest spate of Ransomware attacks? [closed]

I'm not sure this is the right place, but figured people would find it useful if they aren't too familiar with security policies and general best practices. There is a lot of information out there, ...
1
vote
2answers
474 views

Is EICAR a valid test for a mail virus scanner?

We have a fairly standard commercial e-mail setup, we use Outlook and Exchange and have a very well known third party service providing spam & phishing filtering and virus and malware scanning. I ...
0
votes
2answers
1k views

Is sending personal information over email between different providers secure?

For example, if I use Gmail, and use my Gmail account to send personal information, which I don't want others to see except the intended recipient, to a Hotmail account, both in the body as well as an ...
0
votes
1answer
173 views

Blocking Email Attachment download from outside company in Office 365

In Office 365, Emails can accessed from anywhere (within or outside of the company). Want to block Email attachment download from outside of the company. Emails should be accessible from outside of ...
2
votes
1answer
387 views

Sandbox for attachment accessment

I am currently trying to review an e-mail sent to myself, that could be malicious, or it could not. I would like to create a sandbox environment to review this kind of message (it's more than likely ...
16
votes
6answers
4k views

How do I investigate where personal information in a fraudulent email was leaked from?

I have seen an email which is obvious from the content that it's a phishing/spurious email. However, the personal content is quite revealing and specific to that individual. How could I go about ...
3
votes
2answers
279 views

My company sent a phishing email - can they see if I saved the attachment?

My company is doing an anti-phishing campaign and sent out a "fake" email to see how many people would open the attachment. They had previously sent out information about how to avoid these kind of ...
8
votes
6answers
1k views

how to send confidential data through email?

At the moment I'm doing the following: add to zip and encrypt files send the encrypted zip to the recipient create a note through noteshred.com share the link through out-of-band SMS noteshred is ...
0
votes
2answers
227 views

Malicious email containing PDF attachments [closed]

I'm an university student and I have to do a data mining for a research project. For this reason I need emails containing malicious PDF attachments(I am interested in the .eml files). Where can I find ...
1
vote
1answer
242 views

How can i block/stop Someone sending me viruses on my outlook account with different email adresses and different subjects [closed]

how can i stop someone from sending me mails that contain a zip file with virus.This person keeps changing his mail address in every mail that comes in. I have blocked him but still he manages to send ...
0
votes
1answer
5k views

Incoming email with smime.p7s attachment

This is a scenario I have at work. We're receiving emails with .p7s attached files from a single user of a company(hence the company domain for eg. abc.com) our users interact with via mail. We use ...
1
vote
1answer
864 views

Does putting in quarentine attachments with two dots increase security in Outlook 2010?

Outlook 2010 and antispam systems already forbid executable attachments. In this scenario, does putting attachments with two dots in quarentine increase security? Attackers used to use this technique ...
12
votes
2answers
17k views

How can I tell if a PDF file I was sent contains malware?

I was emailed a PDF file by a family member. I have reason to suspect that it was given to said family member by someone who would like nothing more than to infect me with a Remote Access Trojan. How ...