> TiDB, the open-source distributed SQL database powered by PingCAP, today published the results of a rigorous source-code security assessment by NCC Group, one of the world’s leading cybersecurity consultancies.

It looks like you can assess the hell out of your source code, but your system can still leak if you don't secure your operations.

From personal experience having worked with multiple "enterprise-grade" pentest vendors (including NCC), I think the entire pentest industry is overdue for a big shake-up.

No particular opinion on NCC but a lot of that stuff is pay-to-play.