As you already know, email is everywhere, and its use will doubtlessly continue to grow in the foreseeable future. All of your employees love the way it can secretly zap an email across the office, or across the world. Too often, as the security nightmare goes, a staff member sends out a seemingly innocent email with mission-critical, proprietary information attached.
Email seems like a security disaster just waiting to happen.
From this standpoint, it appears that the job of the infosec professional is to not only monitor incoming transfers, but to try to control what is being sent out from behind the firewall. Another dimension to the security problem is when an employee sells information. Roy Han, president and chief executive officer of Anyware Technology, describes an incident that occurred in a company in Taiwan. An employee had taken another job, but before he left the company, he used its email system to sell proprietary information to one of his company's competitors. Han goes on to say that screening and blocking such emails is a serious concern for corporations all over the world.