PII is the American term for personally identifiable information, and a PII compliance checklist is usually a security list with privacy items bolted on. The order that works is different: find it, cut it, guard what is left, and keep the record. Cutting comes second on purpose, because the cheapest data to protect is the data you no longer hold.
Find it, including the copies
The database is the easy part. The copies are where it hides: exports in a shared drive, a spreadsheet emailed to an accountant, a support inbox with eight years of attachments, a test environment restored from production, a backup of a system you retired. Ask each person who handles customer data where they keep things, rather than asking the systems, because a scanner reaches the systems and a conversation reaches the laptops.
Cut what you do not need
Three reductions pay for themselves. Fields you collect and never use, which should stop being collected at all. Old records past the retention period you set, which should be deleted on a schedule rather than when somebody remembers. And test and development copies of production data, which should be replaced with synthetic or masked data, because they are typically the least protected place real customer data lives.
Guard the rest, proportionately
Access on a need basis, reviewed when people change role and removed the day they leave. Encryption in transit everywhere and at rest for anything sensitive. Multi-factor authentication on the systems that hold the data and on the email account that can reset their passwords. Logging good enough to reconstruct who looked at what. And a written answer to what happens if this leaks, because the notification clocks start when you become aware, not when you finish investigating.
Prove you did
The register with its review dates. The deletion runs with what was removed and when. The access review with who was removed. The training record. None of it is elaborate and all of it is the difference between saying you handle data carefully and being able to show it, which is the standard both the regulators and your enterprise customers apply.
Questions people ask about pii compliance checklist
Is PII the same as personal data?
Close but not identical. PII is the US term and tends to be read narrowly as data that identifies a person directly. Personal data in European law reaches anything relating to an identifiable person, including identifiers like an IP address or a cookie id.
Does encryption make it not PII?
No. Encrypted personal data is still personal data to whoever can decrypt it. It may reduce the risk and change breach notification obligations, which is why it is worth doing.
What about data in a vendor's system?
It is still yours to account for. The agreement should cover security and deletion, and your register should list it as a place the data lives.