Most small business anti-virus software can detect previously identified malware, but the best services also identify emergent threats. Top software will recognize suspiciously behaving scripts, phishing campaigns, risky websites and other potential threats.
We relied on reputable third-party testing sources, such as AV Test, to evaluate this software. AV-Test checks the performance of anti-virus software by challenging it with tens of millions of known and possible threats, using hundreds of workstations networked to dozens of servers. The leading anti-virus software consistently receives high detection scores on these tests.