What does it mean "the security code has changed" in WhatsApp from the interlocutor - briefly?
When you receive a message in WhatsApp stating "the security code has changed," it indicates that your contact's encryption keys have been updated. This typically happens when the user changes their phone or reinstalls the app, prompting you to verify the new code for continued secure communication.
What does it mean "the security code has changed" in WhatsApp from the interlocutor - in detail?
When you receive a message from an interlocutor on WhatsApp stating that "the security code has changed," it indicates that the encryption keys used to secure your communication have been updated. This process is known as re-encryption and typically occurs when certain conditions are met, such as changes in device hardware or software updates.
WhatsApp employs end-to-end encryption for all messages sent between users. This means that only the devices of the communicating parties can read the messages, ensuring privacy and security. The encryption keys are unique to each conversation and are constantly changing to maintain a high level of security. When the security code changes, it signals that new encryption keys have been generated and your communication is now protected with an updated key pair.
It's important to note that this change does not require any action on your part unless you notice discrepancies in the security code comparison process. WhatsApp automatically handles these updates to ensure seamless and secure communication between users. If both parties see a mismatch or if there are concerns about the legitimacy of the messages, it's recommended to verify the security codes manually. This verification step helps confirm that the encryption keys have been properly updated and that your conversation remains private and secure.
In summary, receiving a notification that "the security code has changed" in WhatsApp from an interlocutor means that the end-to-end encryption keys used to protect your messages have been updated. This process is routine and ensures ongoing security for your communications on the platform.