What is the worst IT setup you have seen at a company?

I was a backend developer for a startup company where:

• Windows servers without any firewall and security hardening.
• Docker swarm without WSL. We had to use 4 GB Windows base images for 50MB web apps.
• MSSQL without any replication and backups.
• Redis installed on Windows via 3rd-party tool that looked like a 2010 era keygen generator.
• A malware exploited the Redis * what a surprise * and kept killing processes to mine crypto on CPU...
• VPS provider forgot to activate new Windows Server on production and it kept restart for every 30 minutes until I checked the logs and notified them about the missing license.

I left there after 6 months.