CyberGhost VPN offers a 256 bit encoding for your traffic from your PC to and inside the CyberGhost network. It works regardless of the application you use and keeps you safe from data sniffing like Deep Packet Inspection. The safety level is comparable with that of a secure web page, like Internet Banking pages. In fact, in case you visit a HTTPS address (like Internet Banking pages) in the Internet your data is secured all the way from your PC to your banking account.
To get more security in you daily surfing routes you might also consider using the CyberGhost function called 'Force HTTPS', which helps you access many web sites automatically via https instead the insecure http. Alternatively you can use the Chrome/Firefox add-on 'HTTPS Everywhere' (More infos here: https://www.eff.org/https-everywhere).
If one tries to hack a 256 bit AES secured connection, it will take 1,1 * 10 to the 77 combination - which keeps a usual computer busy for about more than 3.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000 years.