Cyber-Thieves Keep A-Knockin’ But They Can’t Come In. A study presented at the International Conference on Dependable Systems and Networks showed that small-business networks are attacked every 39 seconds by some type of hacker or malicious software. Thankfully, having a properly installed and maintained UTM (unified threat management) system that includes a solid firewall, antivirus, spam filtering, content filtering and intrusion detection system (which acts like a burglar