How ChatGPT's new Lockdown mode protects you from data theft (and what else it does)

ZDNet explains that ChatGPT's newly available Lockdown mode is an optional setting designed to reduce the risk of data theft via prompt injection by restricting outbound network requests and disabling features that access the live web (live browsing, web images, deep research, Agent mode, Canvas networking, and file downloads). The article details the trade-offs—reduced live-web capabilities and reliance on cached content—how to enable the mode, and notes it is rolling out to all account types.