What is the safest approach (actions) to GDPR data?

When building a GDPR compliance program, "safest" refers to actions that provide high governance value with low risk of business disruption or accidental data loss.

For GDPR, the safest approach follows a "Crawl, Walk, Run" methodology, starting with non-destructive metadata actions before moving to automated enforcement.

1. The Safest Starting Action: "Notify"

Notification is the lowest-risk action because it does not modify the data at all. It focuses on Accountability (GDPR Article 5).

How it works: Spirion sends an automated email to the file owner or a privacy officer when GDPR data is found.
Why it’s safe: It puts the responsibility on the human who knows the context of the data. It cannot "break" an application or lock a user out of a critical file.
GDPR Value: Demonstrates that you are actively monitoring for sensitive data and educating staff.

2. The Safest Governance Action: "Classify" (Metadata)

Classification is "safe" because it marks the data for future handling without necessarily restricting access immediately.

NTFS ADS (Alternate Data Streams): This is the safest form of classification for Windows environments. It writes the "GDPR-PII" tag to the file's metadata without changing the file's primary content or hash.
Why it’s safe: It is invisible to the end-user and doesn't interfere with most applications, but it allows security tools (like DLP) to see the tag and apply rules later.
GDPR Value: Establishes a "Governed State," proving to auditors that you know exactly where your GDPR data resides.

3. The Safest Protection Action: "MIP Labeling" (Microsoft)

If you use the Microsoft 365 ecosystem, applying a Microsoft Information Protection (MIP) label is safer than a "hard" delete or move.

How it works: Spirion applies a label like "Internal Only" or "General."
Why it’s safe: If a label is applied incorrectly, it can be changed or removed by an administrator. It provides "soft" protection (like watermarking or basic permission sets) that is easier to roll back than a quarantine action.
GDPR Value: Meets the "Security of Processing" requirement (Article 32) by ensuring data is encrypted or restricted to authorized users.

Actions to Use with Caution (The "Unsafe" List)

While these are powerful for GDPR, they carry higher operational risk:

Shred / Delete: High Risk. If Spirion identifies a system file or a critical database flat file as "PII" and deletes it, you could crash an application.
Quarantine (Move): Medium Risk. Moving a file breaks the "file path." If a business process or script expects a file to be in C:\Reports and Spirion moves it to S:\Vault, that process will fail.
Redact: Medium Risk. Redaction modifies the actual bits inside the file. While great for privacy, it is permanent. If you redact a value that wasn't actually PII (a false positive), the original data is lost unless you have a backup.

If you are just starting your GDPR journey, configure your Scan Playbook in this order:

Action 1: Classify (Apply a GDPR-Identified tag via NTFS ADS).
Action 2: Notify (Email the user: "We found potential EU Personal Data in [File_Path]. Please ensure this is stored according to policy.").
Action 3: Manual Review (Set the Playbook to Manual mode so a human must click "Approve" before any stronger actions like Quarantine are taken).

Summary

The safest actions are Notify and Classify (Metadata).

They provide the audit trail required for GDPR without the risk of breaking business workflows.