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I'm confused. The way I understand it is that once the double checkmark appears, those messages are locked in and never rekeyed. That means once you see those c
by ehsankia 10y ago
I'm confused. The way I understand it is that once the double checkmark appears, those messages are locked in and never rekeyed. That means once you see those checkmarks, you're guaranteed no one can snoop on that message anymore.
Assuming you have the notification on (Which anyone who cares about security could and should turn on), once you see a warning, you could just delete all messages that don't have the double checkmark (if any) and not send new ones.
- rndgermandude 10y agoOne checkmark = message delivered / Double checkmark = somebody read it. That somebody might as well be WhatApp doing a MITM The double checkmark stuff the blog talks about just means you cannot retroactively rekey already sent (old) messages. WhatApp inserting itself as a MITM can however read (and double checkmark) and new messages after they did the MITM rekeying
- srathi 10y agoIt is actually slightly different. One checkbox means received by WhatsApp, two checkboxes means received by the recipient and two blue checkboxes means read by the recipient.
- FabHK 10y ago> once you see a warning, you could just delete all messages that don't have the double checkmark No, as it stands, they are automatically (without user intervention) re-encrypted and re-sent.