It’s sometimes said that you can gauge the success of a technology or initiative because someone will develop a criminal scam related to it.  Unfortunately, e-invoicing is no exception, according to a report on Shared Services Link:  http://www.sharedserviceslink.com/file/94374/einvoice-scam-uncovered.html

It reports  that networking company Cisco’s Security Intelligence Operations has detected "significant activity" related to spam email messages claiming to contain electronic invoices.

Written in Portuguese, the fake invoices direct recipients to .zip files that can infect their computers with virus software related to the Trojan.Win32.Generic family.  Once installed on a user's machine, these download malicious files including a ‘back door’, enabling interrogation from a remote host.

As with any digital transactional system, security is paramount.  This threat should be nullified by updated anti-virus software and firewalls, but it’s certainly worth noting as more organisations move to e-invoicing.