The finance department is most at risk from insider threats, according to the results of research carried out by V3's sister site Computing.
Respondents were asked to rank corporate departments in order of the risk from insider threats, and finance came out just ahead of sales and marketing, and IT.
The rest of the list, in decreasing order of risk, was supply chain, board of directors, legal and research, and development.
Some 83 per cent of respondents put the increased threats to business from insiders down to employees' ignorance of data security.
This suggests that security training schemes are not having the required effect, despite repeated calls from experts for firms to train new starters and offer refresher courses throughout every employee's career.
Around 63 per cent of respondents cited increasing use of personal mobile devices on and off the network as the reason for the increased insider threat, while 40 per cent put it down to increased pressure on staff leading to more out-of-hours working.
The research also encompassed privacy concerns. Employee monitoring services were often touted as a valid response to the insider threat, despite their potential to infringe on human rights.
Half of respondents are 'somewhat concerned' by privacy issues at work, and 22 per cent are 'very concerned'.
However, most were relatively happy with the balance struck by their organisation between security and freedom.
Some 60 per cent said that they are 'more or less satisfied' despite the constantly shifting boundaries between lock-down and openness.
However, five per cent are less happy, stating that their organisation is too trusting, and needs to lock down further and monitor employee activities more closely.
Register for Computing's upcoming webinar, Tackling insider threats without becoming Big Brother, for a full breakdown of this research, and to hear from Mike Smart, director at Forcepoint, and Katherine Gibson, senior associate at DLA Piper. The webinar will be broadcast live at 11am on 14 September.
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