In the 21st century, one of the greatest threats to a company or organisation is from cyber attacks. The effects can often be devastating: the loss of crucial data, or a reduction in operating efficiency, or even closure. Your senior management must assess the risk appetite of the company or organisation. But it is vital that everyone in your workplace understands the risks posed by cyber attacks. A cyber attacker may not reveal themselves or even the nature of the attack. An attack may have no obvious adverse effects, but will extract information or data from your networks. Read the advice on Cyber essentials, visit the CPNI website or The National Cyber Security Centre website.