Nissan’s disclosure of a malware attack in which attackers stole employee user-account credentials was a chilling reminder of the reality of industrial espionage. Security professionals need to remember that protecting business-critical intellectual property (IP) should be their No. 1 concern, security pundits say. Many companies don’t prioritize defense against cyberespionage attacks because they don’t view them as a real threat, experts say. Security experts say organizations need to follow what he calls a three-by-three formulation for security.”]