You basically have a device which can and will be hacked by attackers. One thing to keep in mind is while some malicious code infections are obvious (typically

You basically have a device which can and will be hacked by attackers. One thing to keep in mind is while some malicious code infections are obvious (typically using lots of CPU and/or GPU), others are not because their main purpose is to look for sensitive information and/or spread to other devices. My main point is using devices which do not receive security updates is not safe. This goes for the iPhone, Android phones, Windows PCs (this is why using Windows 7 on a machine connected to a network is a horrible idea), MacOS, Linux, etc. No security updates = do not connect the device to ANY network.