What it checks
Accounts with UID 0 other than root.
Why it matters
A hidden UID0 account can be a stealth backdoor.
How to fix
Remove/investigate non-root UID0 accounts.
InfraGuard runs all 36 checks across your servers at once and grades each host A–F.
Track these versions on your own servers
InfraGuard collects installed software versions from every server and flags the ones with known vulnerabilities. Self-hosted — nothing leaves your network.