Examples Of Zero Day Vulnerabilities

To inform companies of zero day vulnerabilities is a mixed motive, on one hand the hacker can let the company know of the vulnerability or they can sell it for a price. Letting the company know they are vulnerable without wanting to be compensated in return is an ethical thing to do. But some gray hats keep it to themselves unless they are compensated fairly which leads more into a very dark shade of gray, one isn’t using the vulnerability for personal gain by exploiting it but is using the knowledge ot it to get money. A great example is recently the FBI paid gray hat hackers for a zero day vulnerability to unlock a terrorist’s iPhone.
The last motive I’m going to expand on is the challenge. Everyone wants a challenge in life be it sports,