Popular Dark Web hosting provider got hacked, 6,500 sites down Hosting provider is still looking for the hacker's point of entry November 17, 2018 https://www.zdnet.com/article/popular-dark-web-hosting-provider-got-hacked-6500-sites-down/
Dark web hosting provider hacked again -- 7,600 sites down March 25, 2020 https://www.zdnet.com/article/dark-web-hosting-provider-hacked-again-7600-sites-down/
These sites are certainly convenient, for the nontechnical. But they're fundamentally insecure in multiple ways. First because any server with numerous Tor onion URLs is more vulnerable to attacks based on Tor design and limitations. Basically because the entry guards can be identified. Second because clever users can find vulnerabilities that give them full server access. And third because pwning the server pwns everything hosted on it.
Hacker leaks database of dark web hosting provider Leaked data contains email addresses, site admin passwords, and .onion domain private keys May 31, 2020 https://www.zdnet.com/article/hacker-leaks-database-of-dark-web-hosting-provider/