I have a small number of employees who use a company computer but these people aren't very tech-savvy. They use an email client and a messaging client.
I'm pretty sure they wouldn't click on a .exe or .zip file in an email without thinking, and I know that's one area of concern.
However, I'm thinking about images. In fact, regardless of how capable a person is with technology, I believe that attaching things (code or anything else) to an image can be a security risk.
What can be attached to images to harm another?
I believe that images can pose a security risk as they 'automatically execute' or something.
There are so many ways that images can be received by a computer (or a phone or tablet, of course):
- iMessage (or any other messaging app)
- someone right-clicking and saving an image from a web page
- just viewing a web page of course downloads the image to cache
What precautions do I need to take regarding the above four things? Can someone just attach some code to an image and it execute?
What do I need to do to prevent images being used against my computers?
I'm guessing you couldn't just attach code to an image and iMessage someone's iPhone. What about Android?