The beauty of split tunneling is that your enterprise doesn't need to provide the general Internet access point for a VPN user. With split tunneling, the VPN client automatically determines whether a network location is accessible through the virtual private network and, if it is not, passes it directly through the network connection. If users send only 10% of their traffic to your corporate network, you're letting their current access...
provider handle the other 90% of the load.
On the other hand, split tunneling may leave users with a false sense of security. If they're following instructions to "connect to the VPN from the road," employees may believe that all of their traffic, including their personal email and Web browsing data, is encrypted by the VPN. They may not realize that the traffic is open to interception on the local network.
From a compliance perspective, PCI DSS doesn't make any statements about split tunneling. I believe you could construct a rational argument for either approach during a compliance audit. Split tunneling wouldn't really reduce the risk of malware infecting your corporate network. If it's present on a machine before it connects to the VPN, it will still be present on that machine when it connects, regardless of your VPN tunneling strategy. If you wish to ensure that systems connecting to your VPN are free of malware, I'd recommend investigating the use of network admission control (NAC) technology.
Dig deeper on SSL and TLS VPN Security
Related Q&A from Mike Chapple, Enterprise Compliance
Social media compliance is not typically considered a big issue for companies, but expert Mike Chapple explains why it should be.continue reading
Metadata tagging is not just for security. Expert Mike Chapple explains how tagging tools can be used to achieve PCI DSS compliance.continue reading
Before using the HIPAA-compliant cloud services from Google, there are some things companies need to know, according to expert Mike Chapple.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.