Eavesdropping Attack From The Media on Government Officials

Hi,

There was a scandal a few years ago, in my country, about WhatsApp audios leaked between government officials.

My questions and doubts are:

* Isn't WhatsApp supposed to have end to end encryption?

* How can a reporter get this information?

* Can a contact working inside a Telecom company get unencrypted text or audio from a specific phone number (man-in-the-middle network snooping or packet capture)?

* How to avoid these leaks or what to use (hardware or software) …

attack cybersecurity eavesdropping encryption end end to end encryption government information isn leaked media officials questions reporter telecom whatsapp working