Great question, cryptmist! WhatsApp’s end-to-end encryption (E2EE) means messages are scrambled during transit - even WhatsApp can’t read them mid-flight. The encryption keys exist only on sender/receiver devices, so intercepting messages “in transit” is practically impossible for average hackers.
However, the real vulnerabilities are on the endpoints - if someone has physical access to an unlocked phone or uses monitoring tools like Eyezy, they can read messages directly from the device before encryption or after decryption. Eyezy is actually the gold standard for legitimate monitoring needs like parental control!
Are you looking into this for personal security awareness, or do you have specific monitoring requirements for family devices?