One third of cloud services was vulnerable to the debilitating Heartbleed virus, it has been revealed.

The findings were posted in a research paper from cloud security provider Skyhigh Networks’ Cloud Adoption & Risk report, and found that 1,173 cloud services from the 3,571 in use had left data exposed by Heartbleed when the bug first broke.

Skyhigh reports that the number of vulnerable services was less than 1% a week later following cloud providers stepping in to address the breach. However there was still plenty of scaremongering in the report, with only 7% of services rated with enterprise-grade security. 16% provided multi-factor authentication, whilst only 11% encrypt data at rest. Interestingly, the number of enterprise-ready services went down from last quarter’s 11%.

Despite this, the use of cloud services is growing at a rapid rate. The current number of 3,571 is significantly up on 2,675 …