Some readers may recently have experienced temporary interference on our web site. Thanks to those of you that wrote or rang in to express your concern. Normal service is now resumed. One lesson that we can learn from this is that there is more to securing the integrity of services than conditional access and content protection. Services delivered over broadband networks may be susceptible to many of the threats that are seen on the open internet. These can include spoofing, spamming and even viral or denial of service attacks. Let’s be careful out there.