Point of Sale (POS) refers to the time and place where a retail transaction occurs. In both physical and digital environments, the POS is the moment when a consumer finalizes a purchase, typically by making a payment. In cybersecurity, POS systems are critical because they process sensitive payment information, making them frequent targets for cyberattacks such as malware, skimming, and data breaches. Secure POS systems implement encryption, tokenization, and regular software updates to protect customer data and prevent unauthorized access. Businesses must ensure their POS systems comply with industry standards like PCI DSS to minimize security risks.