If you did not get consent from a subject, you are not a researcher. If you see a door and check to see if it is unlocked without its owner authorizing you to do so, you are on the ethical side of burglary even if you didn't burgle.
Helpfully the "technical writeup" post links to "industry best practices" [0] which include:
If you are carrying out testing under a bug bounty or similar program, the organisation may have established safe harbor policies, that allow you to legally carry out testing, as long as you stay within the scope and rules of their program. Make sure that you read the scope carefully - stepping outside of the scope and rules may be a criminal offence.
The ethically poor behavior of Fizz doesn't mitigate your own.
0. https://cheatsheetseries.owasp.org/cheatsheets/Vulnerability...
Maybe out of context is the wrong word. You quote enough of the paragraph it just doesn't support your point.
All the paragraph says is that one hypothetical situation may have legal consequences in some juridsictions. It does not make any claim as to whether or not that is ethical or right.
Concerned about user privacy and security — and consistent with industry best practices [link to owasp] — we wrote a detailed email to the Fizz team [0]
Do you disagree that the OWASP page states the below?
Researchers should:
Ensure that any testing is legal and authorised.[1]
Ok, I can see how the OWASP document doesn’t use the words ethic or right or wrong. Would you agree that the claim by saligrama.io that they were “consistent with best practices” (where best practices is a link to OWASP) is not true?
I can see an interpretation where they communicated in line with best practices even if they didn’t follow best practices in their actions before communicating.
0. https://saligrama.io/blog/post/firebase-insecure-by-default/
1. https://cheatsheetseries.owasp.org/cheatsheets/Vulnerability...