Increasingly companies are recognising the dangers of locating their IT departments along side their data centres. For many it is very convenient to have offices in a city centre block as it gives the company access to local business services and the staff good transport, shops and other local amenities. However such a site may be less than ideal for locating mission critical servers as the security offered by such sites cannot be guaranteed. Risk assessment undertaken some years ago probably would not have taken into account many of the dangers found in our global world today, making it time to re-think data centre sighting.