By: Martin Brown, General Manager, Security Technology & Strategy
I have a small swarm of kids, four to be precise, not enough to form a football team, but enough to cause chaos.
My kids are of the age, like the majority of the population who are between the mud and deodorant stages of life, where they have always known the Internet, and the things it bring us.
I, for my sins, am a security bod. I have worked in security for around 20 years, and am currently in BT Security strategizing what future technologies will need to look like if we’re going to be online securely. I refer to myself as a “Technology Funalist” as I enjoy pretty much enjoy all facets of technology, and have the electricity bill to match. My wife introduces me as “the gadget man” and endures this hobby well, being generally accommodating to my techno wishes.
I have, on occasion, had to resort to devious methods to gain access to the latest tech – take the iPad for example – knowing the likely repercussions of returning home from yet another “just having a look” trip to the local computer superstore with a shiny new gadget.
As the “I thought you were only looking!?” conversation began, with dramatic flair I presented her with her own iPad. With an audible “whoosh” the pressure abated, the smile appeared, and we began our blissful life of sharing of apps, music and other tablet-esque adventures. Mission accomplished!
Unlike most normal people, I run our home network like a small business and apply the security controls in a similar vein, despite the groans and moans from the kids.
Whilst they don’t realise it, the kids indirectly benefit from my enthusiasm, getting access to some pretty cool tech stuff which is integrated, just works and is locked down with the intention of keeping it and those using it secure and safe.
That final point is where my kids and I begin to have differing views on the controls around using the Internet, how it should be used, what they can do and where they are allowed to go.
Yes, some of their friends do have access to more stuff than they do, and whilst my kids might think of me as being just to the right of Attila The Hun in terms of internet controls this is because I tend to stick to the rules of the (Internet) road, and pay attention to what ages products and services are intended for. Sadly, this does not seem to be the case for all…
A good example is social networking. Many of the children at school have Facebook accounts, despite being below the minimum age, but we are sticking to the rules – this creates an imbalance which our kids are keen to redress, and are supported by their peers when discussing the tales of woe around how evil Dad is about such things.
As you would expect the sites and materials they want are not offensive, adult or inappropriate, however it’s managing the access to the grey areas where the information, or site, is legally, or based on the end user license, placed just outside their reach.
So how do we maintain and apply these home policies. There are four children in our house, each with around 3-5 years between them. This means there is no such thing as a one size fits all option – each needs to be addressed individually. It is not fair on those who do have Facebook to find they can’t access it and are expected to make do with cartoons and other cuddly images.
As a first step, all the house traffic is routed through a cloud based filter before it gets to the house. This service does a reputation based category web check, and malware checks on web and email as well as providing us with our anti-spam filters.
Each of us has a login which authenticates for web access. Besides some blanket category blocks there are unique restrictions and permissions per user appropriate to age and content type. Attempting to go to a site which is blocked, results in the following user friendly message: 
What a handsome chap!
The next layer in is the firewall. As well as being a firewall, has some IDS and is also blocking all SMTP inbound and outbound other than that destined for my cloud-based mail security providerP2P torrents and the like have no place here!
Finally we get to the client.
All computers, including servers, PCs and Macs have antivirus and firewall on them. No exceptions. There is a mistaken view that Macs do not need AV. That is not the case, and as Apple’s market grows, so does the risk of encountering malware on OSX.
My children are used to this now. They generally accept it and, along with the final piece of the puzzle, education, they are frequently reminded the Internet can be a bad place, and you can only trust someone is who say they are of you seen each other to face and discussed meeting online. Sure, they still click the wrong thing from time to time, but that’s what the layers of protection are for…
And finally, one unintended little “benefit” of running the kids’ laptops in a Windows domain, is when you see their laptop is on at some ridiculous hour, ‘shutdown -i’ is my friend, allowing me to remotely shutdown their laptop. You can tell if they were awake by the immediate response as it shuts down in front of their eyes!
Evil Dad strikes… again!