Notable:
Security researcher Corben Leo contacted Epik’s chief executive Monster over LinkedIn in January about a security vulnerability on the web host’s website. [...] LinkedIn showed Monster had read the message but did not respond.
Monster confirmed he received Leo’s message on LinkedIn, but did not answer our questions about the breach or say when the vulnerability was patched. “We get bounty hunters pitching their services. I probably just thought it was one of those,” said Monster. “I am not sure if I actioned it. Do you answer all your LinkedIn spams?”
That's strike two. I had a
similar experience in which Rob didn't respond when I reported a vulnerability, despite him being the one to initiate communication. The LinkedIn spam excuse certainly doesn't apply there.
I prefer to assume good faith, but my supply of optimism is quickly depleting.