A third of European enterprises have experienced an increase in the frequency of network and data security-related incidents in the last 18 months.

According to a survey of 400 senior IT decision makers by Ciena, 36 per cent had experienced an increase in the frequency of network and data security-related incidents, while 28 per cent of UK respondents had noticed an increase in security threats.

Mervyn Kelly, EMEA marketing director at Ciena, said: “Today's technology-intensive environment relies on communications networks to deliver information safely among individuals and organisations. Yet, as technology has become more complex, these survey results show that threats against keeping information safe have also become more frequent, complex and pervasive.”

The survey also found that 11 per cent of surveyed enterprises do not deploy any encryption method, while 16 per cent of public sector respondents had no encryption in place, even though almost one-third (29 per cent) of them have experienced an increase in security threats in the last 18 months.