Small and medium sized enterprises are putting themselves at risk by not properly securing their wireless networks, a new report has claimed.

IT training firm Firebrand Training said that many small firms leave their network visible to potential attackers by using preset security settings and easily crackable passwords.

This poor attention to basic security potentially leaves critical business information exposed, the firm said.

Firebrand Training's latest white paper claims to help businesses stay one step ahead by explaining some of the tricks of the hacker trade.

By understanding the tactics employed in a hacking attack, SMEs can pre-test their own wireless networks for any potential weaknesses that could be compromised in a real life breach, according to the company.

"Many SMEs may not have a dedicated team in charge of network security, but this is no excuse for not having the necessary measures in place," said Rob Chapman, chief executive at Firebrand Training.

"Wireless networks are highly convenient and extremely quick to implement. But if simple security measures are ignored, wireless weaknesses could open the door to a devastating hack attack."

The white paper also recommends that companies use hacker tools such as port sniffers and tracers in order to test their own wireless systems and make sure they are secure.

"Know your enemy," said Chapman. "Tracking the footprints of an attack before it happens, and taking effective steps to protect the network, will be the only way small businesses will ensure their data remains secure and in the right hands."