The wording of the headline, and the people in the photo made me confused.
First: Is this badly worded? Did it mean a mother of twins' child has just had quadruplets? That's the mother at the back in the middle, her 2 twin sons beside her in...clinical gowns? No...
Second: The mother had twins, one of them has had quadruplets, it's him the picture is foc...no, wait - same thing.
Third: The woman at the front has 2 twin daughters (also in the picture), and she's now had an additional set of quadruplets and the father is staring at the camera because...? There's no way in hell he didn't know she was having quadruplets.
Fourth: Why are there 3 people in the back? Like, they're taking the focus.
If the decryption key is unavailable, the data is as good as wiped already, right? It's unreadable.
I'm guessing you're attempting to mitigate against a brute force attack. I think the 'stock' answer to that would be to ensure you're using a complicated enough pass phrase (I think the current best practice on this is >12 characters with the usual upper, lower, character, number combo can take thousands of years to crack, see here: https://www.security.org/how-secure-is-my-password/) or use a hardware token.
Doesn't LUKS lock out any attempts for 60 seconds after 3 attempts anyway? That's a huge blocker in the way for brute forcing. That's 180 attempts in an hour, 4320 a day, etc. It'll take a long time.
If you're truly looking to wipe, I think you'd need to execute something at the OS level once unlocked/booted to detect incorrect attempts (if attempt >3; then dd if=/dev/zero of=/dev/YourDevice bs=2M or similar).
The wording of the headline, and the people in the photo made me confused.
First: Is this badly worded? Did it mean a mother of twins' child has just had quadruplets? That's the mother at the back in the middle, her 2 twin sons beside her in...clinical gowns? No...
Second: The mother had twins, one of them has had quadruplets, it's him the picture is foc...no, wait - same thing.
Third: The woman at the front has 2 twin daughters (also in the picture), and she's now had an additional set of quadruplets and the father is staring at the camera because...? There's no way in hell he didn't know she was having quadruplets.
Fourth: Why are there 3 people in the back? Like, they're taking the focus.