For years, WhatsApp users have relied on clues such as missing profile photos, hidden “Last Seen” status and single grey check marks to guess whether someone has blocked them. However, those signs often prove unreliable because privacy settings, internet connectivity issues and account changes can produce similar results. Now, a newly discovered behavior within WhatsApp’s encryption system may offer users another way to check their status without sending a message or making a call. According to a report by WhatsApp feature tracker WABetaInfo, the platform’s automatic encryption verification tool could serve as an unofficial indicator that something is wrong with a chat, including the possibility that a user has been blocked. Encryption Tool Draws Attention WhatsApp originally introduced encryption verification to help users confirm that their conversations remain protected by end-to-end encryption (E2EE). The security feature sits within the contact information section of a chat. Users can open a conversation, tap a contact’s profile name and select “Encryption.” WhatsApp then automatically checks whether the encrypted connection between both accounts remains intact. According to WABetaInfo, the process normally completes without issues when both accounts communicate as expected. However, researchers observed a different pattern in some blocked chats. The report says WhatsApp may repeatedly fail to complete the verification process and instead suggest alternative verification methods. “If everything is normal, the verification completes smoothly. But if WhatsApp repeatedly fails to verify encryption and suggests alternative methods, it could hint that something’s off, possibly including being blocked.” The discovery has attracted attention because the method allows users to investigate quietly. Unlike messages or voice calls, the verification process does not alert the other person. “The interesting part: This method doesn’t notify the other person at all, unlike sending a message or placing a call, so users can check quietly, without tipping anyone off.” Not Official Proof of a Block Despite growing interest in the feature, WhatsApp has not confirmed that encryption verification can identify blocked accounts. WABetaInfo stressed that users should not treat the behavior as definitive evidence. The publication noted that the issue appeared consistently in known blocked chats during testing. However, it cautioned that other technical factors could potentially trigger similar verification problems. WhatsApp’s official support pages continue to state that the company intentionally avoids providing direct confirmation when someone blocks a user. Instead, it points to indirect indicators such as undelivered messages, missing profile updates and unavailable status information. Privacy experts say this approach helps protect user privacy and prevents unwanted contact. The latest finding comes as WhatsApp continues expanding security features across its platform. The Meta-owned messaging service recently introduced advanced chat privacy tools, encrypted backups and stronger account protection measures for its more than two billion users worldwide. For now, the encryption verification trick remains an unofficial workaround rather than a confirmed feature. Still, for users trying to solve the mystery of a silent WhatsApp contact, it may provide the strongest clue yet without revealing their suspicions.