Aspects of the disclosure relate to dynamically controlling access to linked content in electronic communications. A computing platform may receive, from a user computing device, a request for a uniform resource locator associated with an email message. Subsequently, the computing platform may identify that the uniform resource locator associated with the email message corresponds to a potentially-malicious site. In response to identifying that the uniform resource locator associated with the email message corresponds to the potentially-malicious site, the computing platform may determine a risk profile associated with the request received from the user computing device. Based on the risk profile associated with the request, the computing platform may execute an isolation method to provide limited access to the uniform resource locator associated with the email message. In some instances, executing the isolation method may include initiating a browser mirroring session to provide the limited access to the potentially-malicious site.