# Security Standards The following sections outline Zoom’s security standards for the web, real-time media, and supported integrations. ### Web All user connections to the Zoom website use TLS 1.2 or 1.3 encryption, and PKI certificates issued by a trusted commercial certificate authority. The strength of encryption and specific ciphers used for connections to the website depend on the browser used to access the site and the results of the common encryption method negotiated. ### Real-Time Media Zoom Contact Center real-time media (audio, video, and screen sharing) is protected with 256-bit AES-GCM encryption between supported Zoom clients and within Zoom’s data centers. Any calls that traverse the PSTN are subject to the underlying carrier’s discretion and may not be encrypted. ### Integrations All third-party integrations with Zoom Contact Center must support TLS 1.2 or 1.3 encryption. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://library.zoom.com/business-services/zoom-contact-center/zoom-customer-experience/overview/security-standards.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.