If your organisation experienced a cyberattack tomorrow, how would your defences cope? Would they keep your company‘s applications and data safe from harm, or would they fall victim to the attack? This paper highlights five of the most common threats that businesses experience, including polymorphic malware, man-in-the-middle attacks, cryptominers, DDoS bots and targeted intruders, and describes security techniques that can mitigate the impact of those threats. The paper goes on to describe five real cyberattacks that Check Point‘s Incident Response Team encountered on customers‘ networks and how each was remedied.