Digital communication is workplace interaction that happens through email, chat, video meetings, or shared documents. In cyber security, these channels are not just collaboration tools; they are a major attack surface because they carry identities, instructions, files, and trust decisions. Attackers often exploit them with phishing emails, fake chat messages, impersonation in meetings, or malicious links and attachments that look routine.
It matters because many security failures start with a convincing message rather than malware. A stolen account can be used to request payments, reset passwords, or spread false instructions across a team. Defenders reduce this risk by using multi-factor authentication, verified contact methods, access controls, encryption, logging, and user training that teaches people to confirm unusual requests through a separate channel. Good digital communication hygiene helps protect both information and decision-making.