Too Long; Didn't Read
COVID-19 has been widely used in various malicious campaigns online. Several disposable email domains using the term “coronavirus” and its variations have appeared since then. Companies may want to consider detecting and possibly blocking communications coming from related email domains to avoid cyber threats as well as possible freemium service abuses. Of the four strings tracked—“corona,” “covid, “vaccine, and “pandemic”—” was the most commonly used term.