[kristofferR]

This title is way underselling this.

As far as I could gather from a quick googling, this is the largest single bug bounty payout in history.

[runeks]

Along with the bounty for this one: https://gerhard-wagner.medium.com/double-spending-bug-in-pol... (also $2M [1])

[1] https://portswigger.net/daily-swig/polygon-pays-out-record-2...

[saurik]

Ah, but, you see: this bounty was $2M...+42! (omg; I honestly hadn't noticed this o_O)

[maurelian]

The extra 42 was just my little hack to get our bounty to appear higher on the list. Nice that it ended up seeing a record too though. :)