Clarity — No PII

Scores are heuristic, not formally certified. A legal DPIA and ε-differential privacy audit are required before production use.

Clarity

No PII · GDPR-aligned pseudonymization pipeline

Platform

1 HRIS CSV

Required CSV columns

Email — required
(also: Email Address, email, work_email)

Optional:
Role · Team · Work_Location
Date_of_Hire · Employment_Status · Employment_Type

Click or drag HRIS CSV here

Email · Role · Team · Work_Location · Date_of_Hire

2 Slack export ZIP

How to export from Slack

1. Go to slack.com/admin
2. Settings → Import/Export Data
3. Click Export → select date range
4. Download the ZIP when notified

Requires Workspace Owner or Admin.

Click or drag Slack ZIP here

Slack Admin → Settings → Import/Export Data

3 Pseudonymize

Processing…

Privacy risk

—

Data utility

—

Risk / utility ratio

—

Population controls

Organisation size

Type any value above 10 000; slider covers up to 10 k.

Min group size (k-anonymity)

Groups below k=5 are trivially re-identified from public org data.

Data filters

Toggle whether each dimension is included. Read the trade-off before enabling.

Message content +35 if included

Sender identity, timestamps, and channel metadata contribute a fixed +37 pt baseline in every export. Message content adds semantic text — the highest-risk signal.

Team / department +8 risk

Enables comparison of how different teams communicate. Privacy: team membership narrows the anonymity set.
Privacy: team membership narrows the anonymity set and enables indirect re-identification when combined with other dimensions.

Role / seniority +7 if included

Measures cross-functional collaboration effectiveness. Establishes role-specific baselines.

Work location +4 if included

Remote employees generate a complete digital footprint. Enables accurate remote-vs-remote comparisons.

Employment status +5 if included

Terminated data triggers stricter GDPR obligations (Art. 17). Enables pre-departure pattern analysis.

Employment type +3 if included

Part-time and contractor roles have structurally lower expected activity.

Tenure band +6 if included

Auto-calculated from hire date. Prevents cross-cohort contamination.

Risk / utility balance

—

risk score

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