In a poll of 455 IT executives in US SMBs, 42% said their networks were not secure even though 96% and 93% of respondents respectively said they had anti-virus and a firewall installed. 80% said they also used spam filtering. This may indicate that small and medium sized businesses are starting to doubt the effectiveness of traditional perimeter security products in protecting them from other security threats, including data leakage and networ » Read more: Four in 10 Company Networks in the US are not Secure