<![CDATA[wtf is this captcha????]]>wtf is this captcha????

]]>https://forum.fedi.dk/topic/e830bdec-f01d-4c3a-88e4-82b88b8a1545/wtf-is-this-captchaRSS for NodeMon, 24 Aug 2026 19:34:13 GMTSat, 15 Aug 2026 19:19:37 GMT60<![CDATA[Reply to wtf is this captcha???? on Sun, 16 Aug 2026 04:25:30 GMT]]>@rebane2001 just a reminder that fingerprints have been extracted from photos of fingers before.

]]>https://forum.fedi.dk/post/https://mastodon.me.uk/users/fishidwardrobe/statuses/117103285377273458https://forum.fedi.dk/post/https://mastodon.me.uk/users/fishidwardrobe/statuses/117103285377273458Sun, 16 Aug 2026 04:25:30 GMT<![CDATA[Reply to wtf is this captcha???? on Sun, 16 Aug 2026 04:01:34 GMT]]>@rebane2001 Being bald is tough right now.

]]>https://forum.fedi.dk/post/https://floss.social/users/carlos/statuses/117103191281109296https://forum.fedi.dk/post/https://floss.social/users/carlos/statuses/117103191281109296Sun, 16 Aug 2026 04:01:34 GMT<![CDATA[Reply to wtf is this captcha???? on Sun, 16 Aug 2026 02:09:02 GMT]]>@rebane2001 Please offer a drop of blood to verify you’re a human. 🧛

]]>https://forum.fedi.dk/post/https://meowstodon.eu/users/meowki/statuses/117102748788444260https://forum.fedi.dk/post/https://meowstodon.eu/users/meowki/statuses/117102748788444260Sun, 16 Aug 2026 02:09:02 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 23:09:56 GMT]]>@rebane2001 looks like a dildo with a swirly tatoo though

]]>https://forum.fedi.dk/post/https://mastodon.social/users/blogdiva/statuses/117102044530316812https://forum.fedi.dk/post/https://mastodon.social/users/blogdiva/statuses/117102044530316812Sat, 15 Aug 2026 23:09:56 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 22:57:31 GMT]]>@arichtman @rebane2001 Ohhh, print-jacking right?

]]>https://forum.fedi.dk/post/https://hachyderm.io/users/sjjh/statuses/117101995692858820https://forum.fedi.dk/post/https://hachyderm.io/users/sjjh/statuses/117101995692858820Sat, 15 Aug 2026 22:57:31 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 22:49:27 GMT]]>@slyecho captchas are inherently ableist

]]>https://forum.fedi.dk/post/https://infosec.exchange/users/rebane2001/statuses/117101964027789780https://forum.fedi.dk/post/https://infosec.exchange/users/rebane2001/statuses/117101964027789780Sat, 15 Aug 2026 22:49:27 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 22:26:31 GMT]]>@rebane2001@infosec.exchange wdym that's a normal captcha

]]>https://forum.fedi.dk/post/https://mk.absturztau.be/notes/apyif7bsxv8p001ihttps://forum.fedi.dk/post/https://mk.absturztau.be/notes/apyif7bsxv8p001iSat, 15 Aug 2026 22:26:31 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 22:11:42 GMT]]>@rebane2001 cute :3 I can't get past the paw though 😢 my woof licence has been revoked

]]>https://forum.fedi.dk/post/https://woof.tech/ap/users/117099508950530730/statuses/117101815543951536https://forum.fedi.dk/post/https://woof.tech/ap/users/117099508950530730/statuses/117101815543951536Sat, 15 Aug 2026 22:11:42 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 21:42:46 GMT]]>@rebane2001

Surely it functions to detect idiots.

Known to be human, not likely a bot.

]]>https://forum.fedi.dk/post/https://infosec.exchange/users/SpaceLifeForm/statuses/117101701784304225https://forum.fedi.dk/post/https://infosec.exchange/users/SpaceLifeForm/statuses/117101701784304225Sat, 15 Aug 2026 21:42:46 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 21:42:05 GMT]]>@rebane2001 @Viss Nice way to link devices

]]>https://forum.fedi.dk/post/https://mastodon.social/users/schrotthaufen/statuses/117101699129331944https://forum.fedi.dk/post/https://mastodon.social/users/schrotthaufen/statuses/117101699129331944Sat, 15 Aug 2026 21:42:05 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 21:28:37 GMT]]>@rebane2001 ableist. What if I don’t have a finger, or a soul?

]]>https://forum.fedi.dk/post/https://mdon.ee/users/slyecho/statuses/117101646157318822https://forum.fedi.dk/post/https://mdon.ee/users/slyecho/statuses/117101646157318822Sat, 15 Aug 2026 21:28:37 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 21:14:05 GMT]]>@rebane2001 *meme "that's à penis"* ^^:

]]>https://forum.fedi.dk/post/https://piaille.fr/users/martouf/statuses/117101588992051566https://forum.fedi.dk/post/https://piaille.fr/users/martouf/statuses/117101588992051566Sat, 15 Aug 2026 21:14:05 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 20:50:58 GMT]]>@rebane2001@infosec.exchange uh....

]]>https://forum.fedi.dk/post/https://hai.z0ne.social/notes/apyf0bl9qw9y0ct9https://forum.fedi.dk/post/https://hai.z0ne.social/notes/apyf0bl9qw9y0ct9Sat, 15 Aug 2026 20:50:58 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 20:49:02 GMT]]>@compliance@infosec.exchange @rebane2001@infosec.exchange oh easy solution, just don't use too big screens >:3
(or y'know, use the zoom function...)

]]>https://forum.fedi.dk/post/https://possum.city/notes/apyextnn4u650dzdhttps://forum.fedi.dk/post/https://possum.city/notes/apyextnn4u650dzdSat, 15 Aug 2026 20:49:02 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 20:47:20 GMT]]>@rebane2001@infosec.exchange the deal with the devil ​​
inb4 your screen pricks your finger for the three drops of blood

]]>https://forum.fedi.dk/post/https://possum.city/notes/apyevncu4u650dzbhttps://forum.fedi.dk/post/https://possum.city/notes/apyevncu4u650dzbSat, 15 Aug 2026 20:47:20 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 20:24:42 GMT]]>@rebane2001 and then you try to do this on a 85 inch screen.

]]>https://forum.fedi.dk/post/https://infosec.exchange/users/compliance/statuses/117101394819062509https://forum.fedi.dk/post/https://infosec.exchange/users/compliance/statuses/117101394819062509Sat, 15 Aug 2026 20:24:42 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:58:58 GMT]]>@OliviaVespera @rebane2001 @emily and I would assume the fields below the finger are intentionally misleading so *with* the pixels showing it can't be scanned

]]>https://forum.fedi.dk/post/https://chaos.social/users/saxnot/statuses/117101293602877507https://forum.fedi.dk/post/https://chaos.social/users/saxnot/statuses/117101293602877507Sat, 15 Aug 2026 19:58:58 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:51:07 GMT]]>@rebane2001 @emily the reason why the QR code works is because of the correction code in QR right? it fills in the blanks lost by the finger.

]]>https://forum.fedi.dk/post/https://spacey.space/users/OliviaVespera/statuses/117101262756631369https://forum.fedi.dk/post/https://spacey.space/users/OliviaVespera/statuses/117101262756631369Sat, 15 Aug 2026 19:51:07 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:49:34 GMT]]>@OliviaVespera @emily ?

]]>https://forum.fedi.dk/post/https://infosec.exchange/users/rebane2001/statuses/117101256676630292https://forum.fedi.dk/post/https://infosec.exchange/users/rebane2001/statuses/117101256676630292Sat, 15 Aug 2026 19:49:34 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:47:07 GMT]]>@rebane2001 @emily amazing. Isn't autocorrect great~

]]>https://forum.fedi.dk/post/https://spacey.space/users/OliviaVespera/statuses/117101247008766533https://forum.fedi.dk/post/https://spacey.space/users/OliviaVespera/statuses/117101247008766533Sat, 15 Aug 2026 19:47:07 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:40:58 GMT]]>@rebane2001 It's a clever idea still!

Kind of related to what I've seen in some CTFs where you had to manually decode a broken QR code.

]]>https://forum.fedi.dk/post/https://infosec.exchange/users/harrysintonen/statuses/117101222832194882https://forum.fedi.dk/post/https://infosec.exchange/users/harrysintonen/statuses/117101222832194882Sat, 15 Aug 2026 19:40:58 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:40:19 GMT]]>@harrysintonen did you just call my artwork "clever, but nothing exceptional" 😭

]]>https://forum.fedi.dk/post/https://infosec.exchange/users/rebane2001/statuses/117101220302948850https://forum.fedi.dk/post/https://infosec.exchange/users/rebane2001/statuses/117101220302948850Sat, 15 Aug 2026 19:40:19 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:35:35 GMT]]>@rebane2001 Simple: QR codes have certain amount of redundancy for error correction.

The idea of this particular QR code is that it is deliberately invalid unless if you cover the invalid part (the finger area). When you do that, the remaining error correction parts make the code valid and readable.

Clever, but nothing exceptional.

]]>https://forum.fedi.dk/post/https://infosec.exchange/users/harrysintonen/statuses/117101201669669603https://forum.fedi.dk/post/https://infosec.exchange/users/harrysintonen/statuses/117101201669669603Sat, 15 Aug 2026 19:35:35 GMT<![CDATA[Reply to wtf is this captcha???? on Sat, 15 Aug 2026 19:24:33 GMT]]>@rebane2001 does. does the qr code only work if you cover up that part

]]>https://forum.fedi.dk/post/https://furry.engineer/users/kirakira/statuses/117101158326318053https://forum.fedi.dk/post/https://furry.engineer/users/kirakira/statuses/117101158326318053Sat, 15 Aug 2026 19:24:33 GMT