Which paper records need controlled destruction?
Enterprises generate many sensitive paper records that are easily overlooked:
- Human-resources files: Applications, payroll, employment agreements and health reports
- Financial records: Invoices, statements, reimbursements and budgets
- Legal records: Agreements, litigation documents and internal memoranda
- Sales records: Customer lists, quotations and tender information
- Board materials: Minutes, shareholder information and internal decisions
- Development records: Designs, technical specifications and experiment logs
- Printouts: Failed and test copies from printers or copiers
Why is controlled destruction needed?
Paper remains a direct route for information exposure:
- Personal-information requirements also apply to paper, including relevant Taiwan PDPA safeguards.
- ISO/IEC 27001:2022 takes a management-system approach; paper information should remain within organizational risk and handling policies.
- Legal retention and destruction requirements must be assessed for finance, healthcare and legal records.
- Ordinary refuse disposal can expose the information.
- Paper leaks involving finance, legal or HR records can have significant consequences.
DIN 66399 reference levels (P class)
Standards-version note: DIN lists DIN 66399:2012 as withdrawn and recommends ISO/IEC 21964. The levels and particle sizes below are retained from customer-supplied material for requirement discussions. Formal projects must confirm the adopted edition, equipment capability, contract and applicable law; this does not mean KYI is certified or a project is automatically compliant.
| Level | Particle-size criterion | Suggested context | Illustrative document types |
|---|---|---|---|
| P-1 | ≤ 12 mm strip width | Ordinary sensitivity | Catalogues and public information |
| P-2 | ≤ 6 mm strip width | Ordinary sensitivity | Ordinary office documents |
| P-3 | ≤ 2 mm strip width | Personal information | Documents containing names and addresses |
| P-4 | ≤ 160 mm² area | Sensitive personal information | Payroll and health reports |
| P-5 | ≤ 30 mm² | Highly confidential | Finance and agreements |
| P-6 | ≤ 10 mm² | Government confidential material | Tenders and internal strategy |
| P-7 | ≤ 5 mm² | Top-secret information | Intelligence and defense information |
KYI x Liansin delivery model
KYI focuses on enterprise requirements, custody and documents, connecting these to Liansin's logistics, sorting and downstream operating experience. Permits, equipment, processing scope and responsibilities follow the proposal and contract. Options can include:
- On-Site Shredding
- Off-Site Shredding
- Recurring weekly/monthly collection
- Customer-witnessed destruction
- Recovery of treated paper as supporting circularity information
Treatment-method comparison
Method A | On-Site destruction
Arrange controlled vehicles, equipment and handoff procedures at the customer site, with customer witnessing where agreed.
Benefit: Keeps information on site, supports observation and allows planning against selected DIN/ISO references and customer policy.
Limitations: Requires scheduling, suitable site space and potentially higher cost.
KYI project context: Finance, government, board materials and highly sensitive records.
Method B | Off-Site destruction
Use agreed sealed bags, seals and controlled transport, including GPS tracking where specified, for delivery to the Liansin processing location.
Benefit: Can be efficient and economical for large batches.
Limitations: Depends on complete Chain of Custody.
KYI project context: Recurring enterprise work and large archival batches.
Method C | Recurring collection
A recurring agreement can schedule weekly or monthly collection with replacement of secure containers.
Benefit: Reduces internal handling, supports audit records and makes recurring cost more predictable.
KYI project context: Medium/large enterprises, finance, healthcare and legal practices.
Common pitfalls and misconceptions
- Misconception 1: Any office shredder is sufficient Some sensitive records require a finer outcome, such as an adopted P-4 criterion, than common office equipment provides.
- Misconception 2: Shred it and discard it without records Without destruction evidence, the enterprise may lack an audit trail.
- Pitfall 3: Waste-paper bins beneath copiers Failed and test printouts can accumulate sensitive information.
- Pitfall 4: Paper removed after printer jams Casual disposal may expose confidential content.
- Pitfall 5: Unmanaged old archives Unaddressed records after the retention period increase exposure.
KYI decision path
Start with three questions:
- How sensitive are the records? → Discuss the applicable P-class outcome: ordinary, personal-information and highly confidential records should not automatically share one criterion.
- Is visual confirmation required? → If on-site control or witnessing is required, assess On-Site execution; otherwise assess a custody-controlled Off-Site path.
- Is the material generated regularly? → Recurring streams may suit scheduled collection; otherwise plan a one-time project.
Verification and records
A project paper-destruction record may include:
- Weight or box count
- Treatment date, location and responsible personnel
- Applicable DIN/ISO P-class reference
- On-Site witness records
- Circularity data, such as recovered paper and estimated carbon benefit with stated boundaries
Applicable industries
Finance, healthcare, legal and accounting practices, government, listed companies and HR-intensive organizations