We commonly see fraud written about in the news, often referring to internet fraud such as phishing scams, Trojan viruses and hacking. As businesses, it is vital to be aware of these risks and take steps to prevent it. However, telephony crime committed against businesses is one of the largest sources of fraud in the UK, 4 times larger than credit card fraud costing £1.5 billion in the last year. And yet this crime is largely unknown to UK businesses because it is not in the public eye, with many companies without protection against this. The average attack of toll fraud can cost upwards of £5,000 so it is vital to be aware of preventative methods to prevent this crime.