So, what's the answer? If you know your company's phone system has an email forwarding system in place, make sure you know exactly what those legitimate emails look like so that you can distinguish them from scam emails. Above all, don't click on any links or open any voicemail attachments unless you're absolutely sure they are coming from your company's actual voicemail system.
Which brings us to our next point . . .
Tactic 2: Dropbox Links
One of the universal rules of thumb for avoiding malware sent via email is, as we noted above, "Don't click on attachments unless you know with absolute certainty where they are coming from." The more widely known this rule of thumb becomes, the less effective attachments will be for cybercriminals--which is probably why they have now turned to Dropbox, an extremely popular (and perfectly legitimate) cloud hosting service.
Instead of sending attachments, some purveyors of malware are now sending links to publicly shared Dropbox folders that contain mailicious software (again, see the image on the left).
So, what's an unsuspecting user to do? The advice is the same as it is with attachments. Don't click on Dropbox links unless you're absolutely sure you trust the sender.
And, when in doubt, always talk to your network adminstrator before clicking on anything. If you're a client of 3n1media, well, you know who to call. Feel free to let us know if you have any questions.