If you host multiple Internet sites in the exact same account and one of them is hacked, it's more than likely that all of them will get hacked afterwards. There are different reasons why this could happen, the two most popular are: using really weak passwords or using out-of-date scripts with widely known vulnerabilities. That way, one single compromised website can make lots of damage to all your websites, because getting access to a single script generally allows hackers to access the whole hosting account. This is the reason why we have introduced an outstanding security option known as JailHost. Once activated, this option will literally lock a website inside its folder, so if an attacker takes over it, the other websites in the account will be hidden. Thus they'll be shielded from further intrusion. The JailHost option doesn't suggest that you should not keep your websites up to date, but it will significantly limit the damage.