Inauthentic amplification is the artificial boosting of a message through fake, automated, or deceptive accounts so it looks more popular, credible, or widely supported than it really is. In cyber security, this matters because attackers often combine social engineering with platform abuse: they seed a claim, then use bots, sockpuppets, or coordinated accounts to repeat it until it appears legitimate.
This technique appears in disinformation campaigns, phishing lures, and reputation attacks, where volume and repetition help bypass user skepticism and moderation systems. Defenders look for signs such as synchronized posting, identical wording, unusual account creation patterns, and sudden engagement spikes from low-trust accounts. Responding effectively means preserving evidence, tracing networked behavior, and separating the content of the claim from the mechanics of its spread. The goal is to reduce harm while identifying whether the amplification is organic or deliberately manufactured.