The implicit claim of this headline is that WhatsApp is not end-to-end secure or that somehow they have a way to interdict and decrypt the encrypted messages.

The implicit claim of this headline is that WhatsApp is not end-to-end secure or that somehow they have a way to interdict and decrypt the encrypted messages. But you should read the article very carefully before making a claim like this. Indeed, anyone "can read the content of encrypted messages" once they've been decrypted.