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WhatsApp deploys several robust security measures to make sure that whatever data is shared during voice and video calls remains well-protected. The mainstay behind this security is E2EE, or end-to-end encryption, which makes sure that the communicating users are the only ones who can access the content of their calls.

End-to-End Encryption
While making a voice or video call on WhatsApp, the call data gets encrypted on the sender device and can only be decrypted on the recipient device. Even WhatsApp cannot access the content of these calls. Keys for such encryption are kept only on users' devices; hence, any attempt by third parties-interceptors-to decipher the communication is practically impossible, whether it is hackers or government agencies.

Signal Protocol
WhatsApp applies the Signal Protocol to encrypt Belarus WhatsApp Number Database messages, considered to be one of the most secure messaging protocols. The protocol leverages the most cutting-edge cryptographic techniques available, including the Double Ratchet algorithm that enables the generation of new keys with each session. This dynamic key management makes it impossible, in case any of these keys are compromised, to breach past and future communications.

Authentication and Verification
WhatsApp goes further and avails other security features, such as verification of the caller's identity. By comparing the security codes assigned to each contact, one will be able to know whether he or she is talking to the right person and not an impostor. This can be considered an added layer of authentication that prevents man-in-the-middle attacks.



Data Protection and Privacy
WhatsApp also takes good care of data protection principles, such as data minimization of personal data and, post-processing of calls, deletion of sensitive information from its servers. It greatly minimizes the possibility of data breaches. Moreover, WhatsApp races against time to update its security infrastructure and protocols to capture emerging threats and vulnerabilities.

User Control
Users have privacy settings as to who can see their profile, status, and last seen. It keeps users private while on call and in other interactions on the site.

Continuous Monitoring and Updating
WhatsApp has a dedicated security team that's always on the lookout for any sort of vulnerability that could be potentially dangerous. In addition, regular updates are provided to the users so that with each passing moment, the concerned security issue could be instantly tackled, keeping it resilient against new attack vectors.

Clearly, WhatsApp has shown belief in the security of voice and video calls by implementing end-to-end encryption, Signal Protocol, authentication means for users, and data protection with continuous monitoring. These come together to provide a safe platform on which the users communicate with no hacks or data leakage.
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