WhatsApp is considered to be a very secure messaging app due to its end-to-end encryption technology. This means that messages and calls sent through the app are encrypted at the sender's device and can only be decrypted by the intended recipient's device. Even WhatsApp itself cannot access the contents of the messages, as the encryption keys are only held by the sender and recipient.

https://apkinu.com/fm-whatsapp-download/ also uses two-factor authentication to add an additional layer of security to users' accounts. This means that in addition to a password, users are required to enter a one-time code sent to their phone via SMS or phone call before logging in to their account.

However, while WhatsApp is generally considered secure, it is not completely immune to security breaches. In 2019, a vulnerability was discovered in the app that allowed attackers to install spyware on users' devices. WhatsApp quickly patched the vulnerability, but it highlights the fact that no app can guarantee complete security.

Additionally, while the messages themselves are encrypted, metadata such as the date, time, and recipients of messages can still be accessed by WhatsApp and potentially used for tracking and surveillance purposes.