It looks like in double-size mode, every other character is dropped. The manual text hints at the result. "Something strange? Well, just for fun, press CLEAR then type STUERBPORAIYSIES. Now press SHIFT ->. Surprised?"
Has anyone investigated how this protection works? That is, deliberately create an eBay account, log into eBay using a remote tool, and trigger the fraud detection? My curiosity is piqued, but I don't have an account to offer up.
I'm wondering if eBay displays a fraud warning, or pretends to allow the transaction to occur (shadow bidding?), or just hellbans the account being used.
For shill-bidding farms, the obvious counter is to move remote screen access to non-standard ports, or move to headless browser operation via other scripting methods.
It will just feed the data-point into an anti-fraud/anti-spam system along with everything else.
And the anti-fraud/anti-spam system is probably a machine learning black box. It will learn if this data-point is actually correlated with naughty behaviour, and what other factors are usually correlated.
Took longer to find one than I expected: https://it.slashdot.org/comments.pl?sid=3060655&cid=41058673 from a discussion of using a sandbox for spambots in 2012.
The beginning of it reads as follows: "Your post advocates a
(X) technical ( ) legislative ( ) market-based ( ) vigilante approach to fighting spam."
The longbox CD package format meant that retailers could use their existing LP storage bins to sell CDs as well during the transition period. The CD jewel case was visible above the shelves below it.
As retailers installed dedicated CD shelving systems, the longbox format was abandoned.
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