Fifteen Czech detectors with Mod-11-aware validation
FastPII is designed for regulated organisations handling Czech records, where structured identifiers such as rodné číslo and IČO carry operational and legal weight. The Czech pack combines local format knowledge with checksum-aware validation so teams can protect AI traffic before raw identifiers move further downstream.
Czech pack summary
Coverage includes national IDs, company IDs, banking structures, identity documents, location signals, and core contact entities used in support, onboarding, and back-office workflows.
Coverage built for everyday Czech operational data
The Czech pack goes beyond one or two high-profile identifiers and covers the surrounding details that appear beside them in real records and AI prompts.
Rodné číslo
IČO
DIČ
Bank account
Phone
Name
Address
Date of birth
Postal code
Vehicle plate
Health insurance
IBAN
Credit card
Identity card
Why Czech identifier depth matters in regulated AI use
Checksum logic helps reduce ambiguity, while policy-aware flagging helps teams treat especially sensitive identifiers with the right operating discipline.
Mod-11 checks
Rodné číslo and IČO can be reviewed against Mod-11 rules, helping teams distinguish a merely similar-looking string from an identifier that fits the expected Czech structure more convincingly.
GDPR Article 9 flagging
Rodné číslo can reveal biological sex. FastPII can flag that signal for workflows where special category review, escalation, or tighter masking rules should apply before AI processing continues.
from fastpii import FastPII
client = FastPII()
result = client.protect(
"Prosím zpracujte žádost klienta. Rodné číslo 800101/1238, IČO 27074358 a účet 19-2000145399/0800.",
mode="redact",
)Add local Czech coverage before AI traffic leaves the request path
Use the Czech pack when your organisation needs more than generic contact detection and wants local identifier depth tied directly to protection, governance, and audit actions.