Security vendors at the RSA Conference urge companies to assume that at some point, they will be breached. The goal of any enterprise security strategy is not to focus on attack mitigation alone, they say. Instead of looking to block specific malware threats, the better approach is to look for the telltale signs of malicious activity. Increasing sophistication of attack tools and approaches is exacerbating the problem is the increasing sophistication of attacks, vendors say. Many of the malware tools that companies need to deal with these days are designed to evade detection and remain hidden for long periods.”]