A report from FireEye [FEYE] and its subsidiary Mandiant has found that 97 percent of organizations using legacy cybersecurity products are not receiving any protection from their investments. Sandboxing, signature-based protections, application blacklists, legacy anti-virus software and stove-piped security solutions are among the most popular and least effective tools that organizations have used to combat increasing cyber threats, according to FireEye. Over the past 15 years, organizations have continually adopted defense-in-depth strategies, layering on defensive strategies that they expect will…