Image spam doubles average file size
The average size of a spam message has increased by 77 per cent since September last year and continues to grow, according to SoftScan.
The security firm attributes the increase to the dramatic rise in image-based spam in recent months.
SoftScan warned that this will add to the cost managing email for organisations that have to scale-up bandwidth and storage requirements to meet demand. Since September last year individual spam emails have increased from an average of 6.62Kb to 11.76Kb.
Although still relatively small in size, the sheer volume of spam that many businesses receive means that only a slight rise can have a significant impact.