Privacy policy clauses for Socket.IO
Socket.IO is a real-time communication library that enables bidirectional event-based messaging between web browsers and servers. Websites use it to deliver live updates, notifications, and interactive features without page refreshes.
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What data Socket.IO collects
Your privacy policy must disclose each of the following data types when you use Socket.IO.
When does Socket.IO trigger privacy obligations?
Socket.IO creates privacy obligations the moment you establish real-time bidirectional communication with users, because it immediately begins collecting and transmitting connection metadata (session IDs, socket IDs, IP addresses, timestamps) and event payloads (application-defined data that you control).
### GDPR triggers
If your users include EU residents, GDPR Article 13 (fair processing) and Article 6 (lawful basis) activate immediately. Socket.IO's session IDs and connection metadata constitute personal data under GDPR recital 26 because they can identify individuals either directly or in combination with other data your application holds. You must document a lawful basis (consent, contract, legitimate interest, etc.) *before* the connection is established.
### CCPA triggers
If you operate in California or serve California residents, CCPA Section 1798.100 requires you to disclose at or before collection that you collect unique identifiers (socket IDs, session IDs) and internet activity (connection events, real-time interactions). You must also offer a right to delete.
