The case, led by a special agent in the Commerce Department's Bureau of Industry and Security, focused on claims that some Meta employees and contractors could access...
A 10-month Commerce Department probe concluded Meta could view all WhatsApp messages in unencrypted form
They own the (closed source) app, which has full access to your decrypted messages. The messages might be e2ee in transit, but they must be decrypted for you to read. This means that they also have access to them in this state, the same as you, and there is nothing preventing them from resending those decrypted messages back to their servers while you send them (before they encrypt) or after your receive them (after they decrypt).
They own the (closed source) app, which has full access to your decrypted messages. The messages might be e2ee in transit, but they must be decrypted for you to read. This means that they also have access to them in this state, the same as you, and there is nothing preventing them from resending those decrypted messages back to their servers while you send them (before they encrypt) or after your receive them (after they decrypt).