The Cardano Foundation recently said it has doubled the payout offered to hackers and bounty hunters that identify bugs or vulnerabilities within the Cardano blockchain. The foundation said the six-week promotion, which runs until March 25, 2022, is part of an ongoing attempt to keep “its businesses and customers safe.”
-via news.bitcoin.com
This is actually a good strategy to see how vulnerable the network is and so that they can make changes as needed.
Some big IT companies hires white hackers to test their softwares to check for vulnerabilities too.