Glasgow (like much of Scotland) is a major city for UK call centres including both captive and outsourced facilities. Some of the larger outsourced vendors there include Hero TSC Response and Sykes. These particular companies are not mentioned but this is not good for such an important industry in the area.
One in 10 of Glasgow's call centres has been infiltrated by criminal gangs, police believe.
The scam works by planting staff inside offices or by forcing current employees to provide sensitive customer details.
The information is then used to steal identities and fraudulently set up accounts or transfer money.
The Customer Contact Association played down the extent of the problem but admitted it was a concern to those in the industry.
Det Ch Insp Derek Robertson of Strathclyde Police told the BBC's Newsnight Scotland programme that there were a large number of call centres in the Glasgow area. Recruit volunteers
"We have 300-plus, and we know that number is growing," he said.
"I would say approximately 10% have been infiltrated in the past and we are working very hard to reduce that number.
" Detectives believe that criminal crews are sent out to recruit volunteers to work in the centres.
Once they agree, they are asked to supply financial information in return for a fee.
Another tactic is to identify pubs where call centre workers visit and intimidate the employees to pass on the details.
Det Ch Insp Robertson said: "There are a number of different ways to do it.
"We know of organised crime groups who are placing people within the call centres so that they can steal customers' data and carry out fraud and money laundering.
"We also know of employees leaving the call centres and being approached and coerced, whether physically, violently or by being encouraged to make some extra money.
"And of course you have the disgruntled employee who may turn their hand to fraud just to benefit themselves.
" However, Anne Marie Forsyth of the Customer Contact Association played down the extent to which criminal gangs had managed to manipulate the industry.