The revelation comes around three years after the infamous HMRC data breach that highlighted the need for encryption of personal data in large organisations.
The survey, which took in responses from 130 respondents across the UK, also found that there is a 'consumerisation' of business IT devices, with 55 of organisations reporting that employees are using their personal devices for work.
This is, says Check Point, despite the fact that 39% of IT managers said they had no formal process for deploying security to these devices.
The situation is compounded, says the firm, by the fact that 10% of companies now offer – or plan to offer – personal laptop allowances to their staff.
Delving into the survey results shows that 68% of organisations reported they had a VPN client deployed on their corporate fleet of portable PCs.
This leaves a majority of businesses potentially vulnerable to unauthorised network access from lost or stolen laptops.
Only 37% of the organisations prohibit the usage of laptops or smartphones for professional purposes, and 61% restrict access to the organisation's network or data resources from personal devices.
Commenting on the results, Nick Lowe, Check Point's head of sales for Western Europe, said that all the data security surveys conducted by Check Point in the UK over the last three years have consistently revealed similar results.
"The use of encryption on corporate laptops has not grown, with less than 50% having data encryption deployed. The HMRC data breach of three years ago stressed the need for data encryption, but a majority of businesses have not yet learnt the lesson", he said.
Consumerisation of business IT, says Lowe, is also a clear concern among IT administrators, with many organisations not having set up an appropriate plan to secure the use of personal laptops and smartphones in the workplace.
"These vulnerabilities need to be addressed by a combination of education and technology so that organisations can protect their data, their business and their employees against security risks", he noted.