In case you host multiple websites in the exact same account and one of them gets hacked, it is quite possible that all of them will get hacked after that. There are various reasons why this may happen, the two most common are: using really weak passwords or using out-of-date scripts with known vulnerabilities. That way, a single compromised Internet site will do a lot of damage to all of your websites, since getting access to a single script normally allows hackers to access the entire web hosting account. This is the reason why we've introduced a new security option named JailHost. Once turned on, this feature will literally lock an Internet site within its folder, so if an attacker takes over it, the remaining websites in the account will remain hidden. Thus they will be protected from further intrusion. The JailHost option does not mean that you should not keep your websites up-to-date, but it'll significantly limit the damage.