Encryption does not protect you from: 1. metadata leaks 2. denial of service backdoors - a real consideration for nations going to trade war with China and Hua

Encryption does not protect you from: 1. metadata leaks 2. denial of service backdoors - a real consideration for nations going to trade war with China and Huawei is pretty connected to the Chinese government Also there is the problem that lot of tech is legacy and can not be easily upgraded for encryption (think SMS and mobile calls)