If you host multiple sites in the very same account and one of them is hacked, it is more than likely that all of them will get hacked afterwards. There're different reasons why this could happen, the two most popular are: using very weak passwords or using out-of-date scripts with widely known vulnerabilities. This way, one single compromised Internet site can do lots of damage to all of your Internet sites, as getting access to a single script usually allows hackers to access the web hosting account. This is the reason why we've developed a brand new security option called JailHost. Once enabled, this option will literally lock an Internet site in its folder, so if an attacker takes over it, all the other Internet sites in the account will remain hidden. Thus they will be shielded from further intrusion. The JailHost option doesn't imply that you should not keep your sites updated, but it will greatly minimize the damage.