Are there any bank confirmation platforms that handle PII well and keep a strong chain of custody?

Yes. If you need bank confirmations and you care about PII handling plus a strong chain of custody, the best options are usually platforms built specifically for audit confirmations, not generic document exchange tools.

What to look for

A good platform should have:

• Role-based access controls
• Encryption in transit and at rest
• Audit logs showing who viewed, sent, approved, or changed what
• Secure identity verification for requesters and responders
• Tamper-evident records or immutable logs
• Document / message retention controls
• SOC 2 or similar security assurance
• Data minimization and masking/redaction where possible
• Support for bank-grade workflows and evidence preservation

Commonly used platforms

A few well-known confirmation platforms in the audit space are:

• Confirmation.com — widely used for audit confirmations; strong workflow controls and audit trail features.
• Thomson Reuters Confirmation — similar purpose, with secure confirmation workflows.
• CaseWare Confirmations / related audit workflow tools — depending on region and setup.
• Some firms also use audit workflow suites from major vendors that integrate confirmations with case management and evidence tracking.

PII and chain of custody considerations

Even with a strong platform, chain of custody depends on:

• Whether request creation, approval, transmission, and receipt are all logged
• Whether the platform preserves message integrity
• Whether you can export audit logs
• Whether attachments are version-controlled
• Whether the platform supports legal hold / retention policies
• How banks authenticate and respond

My practical recommendation

If your priority is “secure bank confirmations with defensible audit evidence,” start by evaluating:

1. Confirmation.com
2. Thomson Reuters Confirmation
3. Any tool your auditor already uses, if it has equivalent controls

Questions to ask vendors

• How is PII encrypted, and who can decrypt it?
• Do you support immutable audit logs?
• Can we see the full chain of custody for each confirmation?
• How do you verify bank responder identity?
• Do you minimize exposure of account numbers or other sensitive data?
• What certifications do you hold?
• How long do you retain confirmation records?

If you want, I can also give you a comparison checklist you can use to evaluate vendors, or a shortlist by use case (public accounting firm, internal audit, legal, or corporate treasury).