More than 40% of businesses do not have security policies around accessing company data remotely using mobile devices, research has found.
This figure has almost doubled since 2008, according to research by security firm SafeNet.
This shows that although a growing number of companies are allowing remote access to data, fewer are putting policies in place to protect that data.
According to Vodafone, there was a 30% increase in UK sales in data services in the last three months of 2008. This was helped by greater mobile PC connectivity.
Some 45% of organisations are accessing sensitive data, according to a survey of 250 attendees at the GSMA Mobile World Congress in Barcelona in February.
But, only a third of mobile users polled said they were using secure mobile devices to access or store company information.
The economic downturn may be forcing many companies to cut budgets, but it could be a bad time to reduce mobile data protection, said Gary Clark, EMEA vice-president at SafeNet.
"With the world in recession, we are likely to see a rise in ID fraud and data theft," he said.
Security is a top concern for mobile device manufacturers seeking to develop new products and services, according to an industry survey published in February.
Some 70% of mobile-device makers surveyed by security firm McAfee said addressing mobile security is critical.